Red Hat Security Advisory: python3.11 security update
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: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100) * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786) 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.
AI Analysis
Technical Summary
This advisory covers two security vulnerabilities in Python 3.11 as packaged by Red Hat. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that can lead to arbitrary code execution or information disclosure. CVE-2026-4786 is a command injection vulnerability in the webbrowser.open() API that allows arbitrary code execution. Red Hat has released updated python3.11 packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related variants to address these issues. The advisory references Red Hat Bugzilla entries BZ-2457932 and BZ-2458049 for the respective CVEs and directs users to apply the provided updates.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code or disclose sensitive information on affected systems running vulnerable versions of python3.11. This poses a significant security risk, especially for systems that run untrusted Python code or expose the vulnerable APIs. The vulnerabilities affect Red Hat Enterprise Linux 9.6 Extended Update Support and related CodeReady Linux Builder and other variants.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that fix these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support and related products should apply the security update as detailed in Red Hat advisory RHSA-2026:14652 and the article https://access.redhat.com/articles/11258. Applying these official updates is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: python3.11 security update
Description
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: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100) * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two security vulnerabilities in Python 3.11 as packaged by Red Hat. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that can lead to arbitrary code execution or information disclosure. CVE-2026-4786 is a command injection vulnerability in the webbrowser.open() API that allows arbitrary code execution. Red Hat has released updated python3.11 packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related variants to address these issues. The advisory references Red Hat Bugzilla entries BZ-2457932 and BZ-2458049 for the respective CVEs and directs users to apply the provided updates.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code or disclose sensitive information on affected systems running vulnerable versions of python3.11. This poses a significant security risk, especially for systems that run untrusted Python code or expose the vulnerable APIs. The vulnerabilities affect Red Hat Enterprise Linux 9.6 Extended Update Support and related CodeReady Linux Builder and other variants.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that fix these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.6 Extended Update Support and related products should apply the security update as detailed in Red Hat advisory RHSA-2026:14652 and the article https://access.redhat.com/articles/11258. Applying these official updates is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:14652
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50edd5a1
Added to database: 05/27/2026, 21:15:27 UTC
Last enriched: 07/03/2026, 00:53:24 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 45
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