Red Hat Security Advisory: python3.9 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
Red Hat Product Security released an advisory (RHSA-2026:10949) for Python 3.9 on Red Hat Enterprise Linux 9 addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules that can lead to arbitrary code execution or information disclosure, and CVE-2026-4786, a command injection vulnerability in the webbrowser.open() API allowing arbitrary code execution. The advisory covers multiple Red Hat Enterprise Linux 9 variants and CodeReady Linux Builder products. Although no CVSS scores are provided, the issues are rated with high severity by the source. Official updated packages are available to remediate these vulnerabilities.
Potential Impact
Successful exploitation of CVE-2026-6100 could result in arbitrary code execution or information disclosure due to a use-after-free condition in decompression modules. CVE-2026-4786 allows arbitrary code execution via command injection in the webbrowser.open() API. Both vulnerabilities pose significant security risks if exploited, potentially compromising system integrity and confidentiality. No known exploits in the wild have been reported so far.
Mitigation Recommendations
Red Hat has released updated python3.9 packages for Red Hat Enterprise Linux 9 and related products that address these vulnerabilities. Users should apply these official updates promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. Since patches are available, applying these updates is the recommended remediation. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: python3.9 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
Red Hat Product Security released an advisory (RHSA-2026:10949) for Python 3.9 on Red Hat Enterprise Linux 9 addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules that can lead to arbitrary code execution or information disclosure, and CVE-2026-4786, a command injection vulnerability in the webbrowser.open() API allowing arbitrary code execution. The advisory covers multiple Red Hat Enterprise Linux 9 variants and CodeReady Linux Builder products. Although no CVSS scores are provided, the issues are rated with high severity by the source. Official updated packages are available to remediate these vulnerabilities.
Potential Impact
Successful exploitation of CVE-2026-6100 could result in arbitrary code execution or information disclosure due to a use-after-free condition in decompression modules. CVE-2026-4786 allows arbitrary code execution via command injection in the webbrowser.open() API. Both vulnerabilities pose significant security risks if exploited, potentially compromising system integrity and confidentiality. No known exploits in the wild have been reported so far.
Mitigation Recommendations
Red Hat has released updated python3.9 packages for Red Hat Enterprise Linux 9 and related products that address these vulnerabilities. Users should apply these official updates promptly following Red Hat's published guidance at https://access.redhat.com/articles/11258. Since patches are available, applying these 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-2026:10949
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50edd962
Added to database: 5/27/2026, 9:15:27 PM
Last enriched: 5/27/2026, 9:25:50 PM
Last updated: 5/29/2026, 10:05:34 AM
Views: 11
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