RHSA-2026:50816: Important: python3 security update
Important: python3 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/python3to a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/platform-pythonto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/platform-python-debugto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/platform-python-develto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-debuginfoto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-debugsourceto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-idleto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-libsto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-testto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12 - Upgrade
Upgrade
redhat/python3-tkinterto a version that resolves this vulnerability.Fixed in 3.6.8-39.el8_4.12
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:50816?
The severity of RHSA-2026:50816 is classified as high with a score of 7.
How do I fix RHSA-2026:50816?
To fix RHSA-2026:50816, you should update the affected Python packages on your system using the standard update procedures.
Which software packages are affected by RHSA-2026:50816?
The affected packages for RHSA-2026:50816 include redhat/platform-python, redhat/platform-python-debug, redhat/platform-python-devel, and others.
What type of vulnerability does RHSA-2026:50816 address?
RHSA-2026:50816 addresses security vulnerabilities in the Python3 programming language.
When was RHSA-2026:50816 published?
RHSA-2026:50816 was published on August 5, 2026.