firefox-153.6.0-1.el9_8.ML.1

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* firefox: thunderbird: Privilege escalation in the DLL Services component (CVE-2026-100801)
* firefox: thunderbird: Invalid pointer in the JavaScript Engine component (CVE-2026-117910)
* firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-117876)
* firefox: thunderbird: Same-origin policy bypass in the DOM: Navigation component (CVE-2026-117860)
* firefox: thunderbird: Sandbox escape due to use-after-free in the Graphics component (CVE-2026-117985)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117887)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117987)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117943)
* firefox: thunderbird: Privilege escalation in the DOM: UI Events & Focus Handling component (CVE-2026-117995)
* firefox: thunderbird: Use-after-free in the Graphics: ImageLib component (CVE-2026-117908)
* firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-117934)
* firefox: thunderbird: Use-after-free in the Audio/Video: Playback component (CVE-2026-117905)
* firefox: thunderbird: Use-after-free in the Audio/Video component (CVE-2026-117923)
* firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-117890)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Tables component (CVE-2026-117879)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117895)
* firefox: thunderbird: Use-after-free in the DOM: CSS Object Model component (CVE-2026-117941)
* firefox: thunderbird: Mitigation bypass in the DOM: Push Subscriptions component (CVE-2026-117998)
* firefox: thunderbird: Use-after-free in the XML component (CVE-2026-117880)
* firefox: thunderbird: Use-after-free in the Networking component (CVE-2026-117907)
* firefox: thunderbird: Race condition in the IPC component (CVE-2026-117999)
* firefox: thunderbird: Use-after-free in the DOM: Editor component (CVE-2026-117900)
* firefox: thunderbird: Sandbox escape in the DOM: Networking component (CVE-2026-117868)
* firefox: thunderbird: Privilege escalation due to use-after-free in the Graphics: Canvas2D component (CVE-2026-117866)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117925)
* firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-117882)
* firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-117921)
* firefox: thunderbird: Privilege escalation in the Toolkit component (CVE-2026-117981)
* firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-117914)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Tables component (CVE-2026-117897)
* firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Networking component (CVE-2026-117862)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117896)
* firefox: Site isolation issue in the Networking: HTTP component (CVE-2026-117958)
* firefox: thunderbird: Incorrect boundary conditions in the DOM: Core & HTML component (CVE-2026-117950)
* firefox: thunderbird: Invalid pointer in the JavaScript Engine: JIT component (CVE-2026-117982)
* firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-117865)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117986)
* firefox: thunderbird: Integer overflow in the Graphics: Text component (CVE-2026-117993)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117980)
* firefox: thunderbird: Use-after-free in the Audio/Video: Playback component (CVE-2026-117911)
* firefox: thunderbird: Information disclosure in the Networking: HTTP component (CVE-2026-118000)
* firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-117867)
* firefox: thunderbird: Same-origin policy bypass in the CSS Parsing and Computation component (CVE-2026-117912)
* firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-117960)
* firefox: thunderbird: Sandbox escape in the Form Manager component (CVE-2026-117864)
* firefox: thunderbird: Invalid pointer in the Graphics: WebRender component (CVE-2026-117917)
* firefox: thunderbird: Use-after-free in the DOM: Events component (CVE-2026-117931)
* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component (CVE-2026-117988)
* firefox: thunderbird: Invalid pointer in the Graphics component (CVE-2026-117871)
* firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-117898)
* firefox: thunderbird: Use-after-free in the Panning and Zooming component (CVE-2026-117964)
* firefox: thunderbird: Incorrect boundary conditions in the Security: PSM component (CVE-2026-117893)
* firefox: thunderbird: Privilege escalation due to use-after-free in the WebRTC: Networking component (CVE-2026-117892)
* firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-117916)
* firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-117902)
* firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-117967)
* firefox: thunderbird: Use-after-free in the XML component (CVE-2026-117947)
* firefox: thunderbird: Invalid pointer in the Nimbus Desktop Client component (CVE-2026-117956)
* firefox: thunderbird: Use-after-free in the Layout: Scrolling and Overflow component (CVE-2026-117875)
* firefox: thunderbird: Sandbox escape due to invalid pointer in the Graphics: WebRender component (CVE-2026-117975)
* firefox: thunderbird: Incorrect boundary conditions in the XML component (CVE-2026-117945)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117901)
* firefox: thunderbird: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-117946)
* firefox: thunderbird: Incorrect boundary conditions in the SVG component (CVE-2026-117926)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117881)
* firefox: thunderbird: Invalid pointer in the JavaScript Engine: JIT component (CVE-2026-117969)
* firefox: thunderbird: Information disclosure in the CSS Parsing and Computation component (CVE-2026-117992)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117940)
* firefox: thunderbird: Incorrect boundary conditions in the DOM: Service Workers component (CVE-2026-117963)
* firefox: thunderbird: Site isolation issue in the DOM: Service Workers component (CVE-2026-117959)
* firefox: thunderbird: Other issue, use-after-free in the Storage: IndexedDB component (CVE-2026-117878)
* firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-117948)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117932)
* firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component (CVE-2026-117886)
* firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-117938)
* firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-117927)
* firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-117924)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117949)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Scrolling and Overflow component (CVE-2026-117984)
* firefox: thunderbird: Use-after-free in the SVG component (CVE-2026-117913)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117936)
* firefox: thunderbird: Invalid pointer in the JavaScript Engine component (CVE-2026-117937)
* firefox: thunderbird: Use-after-free in the DOM: HTML Parser component (CVE-2026-117883)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117972)
* firefox: thunderbird: Use-after-free in the Internationalization component (CVE-2026-117874)
* firefox: thunderbird: Use-after-free in the Layout: Grid component (CVE-2026-117885)
* firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-117978)
* firefox: thunderbird: Use-after-free in the Layout component (CVE-2026-117944)
* firefox: thunderbird: Information disclosure in the Networking: DNS component (CVE-2026-118003)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117953)
* firefox: thunderbird: Information disclosure due to race condition in the Networking component (CVE-2026-118002)
* firefox: thunderbird: Use-after-free in the DOM: HTML Parser component (CVE-2026-117920)
* firefox: thunderbird: Use-after-free in the Audio/Video component (CVE-2026-117903)
* firefox: thunderbird: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-117942)
* firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component (CVE-2026-117888)
* firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Signaling component (CVE-2026-117894)
* firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-117904)
* firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-117955)
* firefox: thunderbird: Use-after-free in the Networking: WebSockets component (CVE-2026-117922)
* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Storage: Quota Manager component (CVE-2026-117962)
* firefox: thunderbird: Other issue in the Console component (CVE-2026-117977)
* firefox: thunderbird: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-117935)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117919)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117869)
* firefox: thunderbird: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-117891)
* firefox: thunderbird: Use-after-free in the Networking component (CVE-2026-117884)
* firefox: thunderbird: Use-after-free in the Networking: HTTP component (CVE-2026-117899)
* firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-117861)
* firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-117909)
* firefox: thunderbird: Same-origin policy bypass in the CSS Parsing and Computation component (CVE-2026-117928)
* firefox: thunderbird: Frame poisoning in the CSS Parsing and Computation component (CVE-2026-117933)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117989)
* firefox: thunderbird: Use-after-free in the JavaScript: Standard Library component (CVE-2026-117872)
* firefox: thunderbird: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-117889)
* firefox: thunderbird: Incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-117979)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117968)
* firefox: thunderbird: Use-after-free in the Graphics component (CVE-2026-117983)
* firefox: thunderbird: Use-after-free in the Networking: DNS component (CVE-2026-117973)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117929)
* firefox: thunderbird: Uninitialized memory in the Networking component (CVE-2026-117952)
* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component (CVE-2026-117873)
* firefox: thunderbird: Site isolation issue in the DOM: Navigation component (CVE-2026-117976)
* firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-117951)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Block and Inline component (CVE-2026-117915)
* firefox: thunderbird: Incorrect boundary conditions in the CSS Transitions and Animations component (CVE-2026-118004)
* firefox: thunderbird: Use-after-free in the JavaScript: GC component (CVE-2026-117994)
* firefox: thunderbird: Use-after-free in the XML component (CVE-2026-117939)
* firefox: thunderbird: Information disclosure due to uninitialized memory in the Audio/Video component (CVE-2026-117863)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-117961)
* firefox: thunderbird: Race condition in the Disability Access APIs component (CVE-2026-117970)
* firefox: thunderbird: Use-after-free in the XML component (CVE-2026-117974)
* firefox: thunderbird: Site isolation issue in the Networking: HTTP component (CVE-2026-117966)
* firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-117918)
* firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-117991)
* firefox: thunderbird: Sandbox escape due to use-after-free in the Widget component (CVE-2026-117997)
* firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-117996)
* firefox: thunderbird: Sandbox escape due to use-after-free in the Print Preview component (CVE-2026-117971)
* firefox: thunderbird: Cryptographic issue in the WebRTC: Networking component (CVE-2026-117957)
* firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-117870)
* firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-117877)
* firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-117990)
* firefox: thunderbird: Same-origin policy bypass in the Address Bar component (CVE-2026-117965)
* firefox: thunderbird: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-117930)
* firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-117906)
* firefox: thunderbird: Use-after-free in the Layout: Positioned component (CVE-2026-117954)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVE-2026-100801
Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird 153.6, Firefox 157, and Firefox ESR 140.17.
CVE-2026-117860
Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117861
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117862
Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117863
Information disclosure due to uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117864
Sandbox escape in the Form Manager component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117865
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117866
Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117867
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117868
Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117869
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117870
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117871
Invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117872
Use-after-free in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117873
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117874
Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117875
Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117876
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117877
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117878
Other issue, use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117879
Incorrect boundary conditions in the Layout: Tables component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117880
Use-after-free in the XML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117881
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117882
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117883
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117884
Use-after-free in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117885
Use-after-free in the Layout: Grid component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117886
Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117887
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117888
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117889
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117890
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117891
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117892
Privilege escalation due to use-after-free in the WebRTC: Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117893
Incorrect boundary conditions in the Security: PSM component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117894
Incorrect boundary conditions in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117895
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117896
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117897
Incorrect boundary conditions in the Layout: Tables component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117898
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117899
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117900
Use-after-free in the DOM: Editor component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117901
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117902
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117903
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117904
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117905
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117906
Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117907
Use-after-free in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117908
Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117909
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117910
Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117911
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117912
Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117913
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117914
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117915
Incorrect boundary conditions in the Layout: Block and Inline component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117916
Use-after-free in the XSLT component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117917
Invalid pointer in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117918
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117919
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117920
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117921
Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117922
Use-after-free in the Networking: WebSockets component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117923
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117924
Use-after-free in the XSLT component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117925
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117926
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117927
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117928
Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117929
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117930
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117931
Use-after-free in the DOM: Events component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117932
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117933
Frame poisoning in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117934
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117935
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117936
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117937
Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117938
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117939
Use-after-free in the XML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117940
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117941
Use-after-free in the DOM: CSS Object Model component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117942
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117943
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117944
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117945
Incorrect boundary conditions in the XML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117946
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117947
Use-after-free in the XML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117948
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117949
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117950
Incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117951
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117952
Uninitialized memory in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117953
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117954
Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117955
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117956
Invalid pointer in the Nimbus Desktop Client component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117957
Cryptographic issue in the WebRTC: Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117958
Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117959
Site isolation issue in the DOM: Service Workers component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117960
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117961
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117962
Sandbox escape due to incorrect boundary conditions in the Storage: Quota Manager component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117963
Incorrect boundary conditions in the DOM: Service Workers component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117964
Use-after-free in the Panning and Zooming component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117965
Same-origin policy bypass in the Address Bar component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117966
Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117967
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117968
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117969
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117970
Race condition in the Disability Access APIs component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117971
Sandbox escape due to use-after-free in the Print Preview component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117972
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117973
Use-after-free in the Networking: DNS component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117974
Use-after-free in the XML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117975
Sandbox escape due to invalid pointer in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117976
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117977
Other issue in the Console component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117978
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117979
Incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117980
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117981
Privilege escalation in the Toolkit component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117982
Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117983
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117984
Incorrect boundary conditions in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117985
Sandbox escape due to use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117986
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117987
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117988
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117989
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117990
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117991
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117992
Information disclosure in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117993
Integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117994
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117995
Privilege escalation in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117996
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117997
Sandbox escape due to use-after-free in the Widget component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117998
Mitigation bypass in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-117999
Race condition in the IPC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-118000
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-118002
Information disclosure due to race condition in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-118003
Information disclosure in the Networking: DNS component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
CVE-2026-118004
Incorrect boundary conditions in the CSS Transitions and Animations component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.