RHSA-2026:50770: Important: python3.12 security update
Important: python3.12 security update
Other sources
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) 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.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/python3.12to a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-debuginfoto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-debugsourceto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-develto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-libsto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-tkinterto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12to a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-debuginfoto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-debugsourceto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-develto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-libsto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-tkinterto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-debugto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-idleto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-testto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9 - Upgrade
Upgrade
redhat/python3.12-debugto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-idleto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa - Upgrade
Upgrade
redhat/python3.12-testto a version that resolves this vulnerability.Fixed in 3.12.9-1.el9_6.9.aa
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:50770?
The severity of RHSA-2026:50770 is categorized as high with a score of 7.
How do I fix RHSA-2026:50770?
To fix RHSA-2026:50770, you should update Python to the latest version provided in the security advisory.
What software is affected by RHSA-2026:50770?
The affected software includes various packages related to Python 3.12, such as redhat/python3.12 and its associated libraries.
What are the risks associated with RHSA-2026:50770?
The risks associated with RHSA-2026:50770 include potential vulnerabilities that could be exploited to compromise the security of applications utilizing Python 3.12.
When was RHSA-2026:50770 published?
RHSA-2026:50770 was published on August 5, 2026.