python3.9-3.9.25-7.el9_8.2

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):

* python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations (CVE-2026-15308)

Bug Fix(es) and Enhancement(s):

* python3.9 test_ssl fails ssl.SSLError: [ASN1: NOT_ENOUGH_DATA] not enough data (_ssl.c:4192) [rhel-9.8.z] (JIRA:RHEL-194207)

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-2026-15308
The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.