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 Red Hat security advisory addresses two vulnerabilities in python3.11: CVE-2026-6100 involves a use-after-free condition 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. The vulnerabilities affect Red Hat Enterprise Linux 9 and related distributions. Red Hat has released updated python3.11 packages to fix these issues. The advisory classifies the security impact as Important. No CVSS scores are provided in the advisory, and no known exploits have been reported.
Potential Impact
Successful exploitation of CVE-2026-6100 could allow an attacker to execute arbitrary code or disclose sensitive information due to a use-after-free vulnerability in decompression modules. CVE-2026-4786 could enable arbitrary code execution through command injection in the webbrowser.open() API. These vulnerabilities pose a high risk to affected systems running vulnerable python3.11 versions on Red Hat Enterprise Linux 9 and related products. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:10774 and the article at https://access.redhat.com/articles/11258. This update is the official fix for these issues. There are no indications that additional mitigations are required beyond applying the update.
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory addresses two vulnerabilities in python3.11: CVE-2026-6100 involves a use-after-free condition 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. The vulnerabilities affect Red Hat Enterprise Linux 9 and related distributions. Red Hat has released updated python3.11 packages to fix these issues. The advisory classifies the security impact as Important. No CVSS scores are provided in the advisory, and no known exploits have been reported.
Potential Impact
Successful exploitation of CVE-2026-6100 could allow an attacker to execute arbitrary code or disclose sensitive information due to a use-after-free vulnerability in decompression modules. CVE-2026-4786 could enable arbitrary code execution through command injection in the webbrowser.open() API. These vulnerabilities pose a high risk to affected systems running vulnerable python3.11 versions on Red Hat Enterprise Linux 9 and related products. No known active exploitation has been reported.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:10774 and the article at https://access.redhat.com/articles/11258. This update is the official fix for these issues. There are no indications that additional mitigations are required beyond applying the update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:10774
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50edd969
Added to database: 5/27/2026, 9:15:27 PM
Last enriched: 5/27/2026, 9:26:00 PM
Last updated: 5/29/2026, 7:30:05 AM
Views: 8
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