firefox-153.5.0-1.el9_8.ML.1

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

Security Fix(es):

* libexpat: denial of service via crafted XML input (CVE-2026-45186)
* firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)
* firefox: Use-after-free in the XML component (CVE-2026-109718)
* firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)
* firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)
* firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)
* firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)
* firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)
* firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component (CVE-2026-109709)
* firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component (CVE-2026-109705)
* firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)
* firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)
* firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)
* firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)
* firefox: Other issue in the DOM: File component (CVE-2026-109744)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)
* firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)
* firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)
* firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)
* firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)
* firefox: Sandbox escape due to incorrect boundary conditions in the Networking component (CVE-2026-109708)
* firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)
* firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)
* firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)
* firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)
* firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)
* firefox: Use-after-free in the SVG component (CVE-2026-109726)
* firefox: Integer overflow in the Graphics component (CVE-2026-109730)
* firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)
* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)
* firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)
* firefox: Site isolation issue in the Networking component (CVE-2026-109759)
* firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)
* firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)
* firefox: Information disclosure in the Networking component (CVE-2026-109751)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)
* firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)
* firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)
* firefox: Frame poisoning in the Layout component (CVE-2026-109736)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)
* firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)
* firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)
* firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

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-2026-109704
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109705
Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109706
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109707
Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109708
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109709
Information disclosure, privilege escalation in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109711
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109712
Sandbox escape due to uninitialized memory in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109713
Use-after-free in the Crash Reporting component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109715
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109716
Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109717
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109718
Use-after-free in the XML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109719
Race condition, use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109720
JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109721
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109722
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109723
Integer overflow in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109724
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109725
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109726
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109727
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109728
Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109729
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109730
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109732
Use-after-free in the DOM: Streams component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109733
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109736
Frame poisoning in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109737
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109738
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109740
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109741
Use-after-free in the Storage: Bucket File System component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109742
Information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109743
Privilege escalation in the Panning and Zooming component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109744
Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109745
Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109751
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109752
Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109753
Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109754
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109756
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109757
Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109759
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109760
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109762
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109763
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
CVE-2026-109782
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
CVE-2026-45186
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.