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
Red Hat Product Security issued an advisory (RHSA-2026:14653) for python3.11 in Red Hat Enterprise Linux 9.4 EUS addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules enabling arbitrary code execution or information disclosure, and CVE-2026-4786, a command injection vulnerability in the webbrowser.open() API allowing arbitrary code execution. These vulnerabilities are rated with high severity and are fixed in updated python3.11 packages. The advisory includes multiple updated packages for various architectures and provides links for applying the update. No CVSS scores are provided in the advisory, but the impact is significant due to potential arbitrary code execution.
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 via command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk on affected Red Hat Enterprise Linux 9.4 systems running python3.11. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.4 Extended Update Support should apply the python3.11 security update as detailed in the Red Hat advisory RHSA-2026:14653 and the referenced article https://access.redhat.com/articles/11258. Applying this update remediates the vulnerabilities. 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security issued an advisory (RHSA-2026:14653) for python3.11 in Red Hat Enterprise Linux 9.4 EUS addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules enabling arbitrary code execution or information disclosure, and CVE-2026-4786, a command injection vulnerability in the webbrowser.open() API allowing arbitrary code execution. These vulnerabilities are rated with high severity and are fixed in updated python3.11 packages. The advisory includes multiple updated packages for various architectures and provides links for applying the update. No CVSS scores are provided in the advisory, but the impact is significant due to potential arbitrary code execution.
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 via command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk on affected Red Hat Enterprise Linux 9.4 systems running python3.11. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated python3.11 packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.4 Extended Update Support should apply the python3.11 security update as detailed in the Red Hat advisory RHSA-2026:14653 and the referenced article https://access.redhat.com/articles/11258. Applying this update remediates the vulnerabilities. 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-2026:14653
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eefe29bf47b50edd59a
Added to database: 5/27/2026, 9:15:27 PM
Last enriched: 5/27/2026, 9:24:41 PM
Last updated: 5/29/2026, 7:40:24 PM
Views: 7
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