Red Hat Security Advisory: python3.11 security update
Red Hat has issued a security advisory for python3.11 in Red Hat Enterprise Linux 8 addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules leading to arbitrary code execution or information disclosure, and CVE-2026-4786, an arbitrary code execution vulnerability via command injection in the webbrowser.open() API. The update is rated as Important by Red Hat Product Security. The advisory provides updated packages to remediate these issues.
AI Analysis
Technical Summary
This advisory covers two security vulnerabilities in python3.11 as packaged for Red Hat Enterprise Linux 8. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that can result in arbitrary code execution or information disclosure. CVE-2026-4786 is an arbitrary code execution vulnerability caused by command injection in the webbrowser.open() API. Red Hat has released updated python3.11 packages to address these issues. The advisory references Red Hat's errata RHSA-2026:11062 and provides links to updated packages and remediation instructions.
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 flaw in decompression modules. CVE-2026-4786 could allow arbitrary code execution through command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk as they enable remote code execution or data leakage on affected systems running vulnerable python3.11 versions.
Mitigation Recommendations
Red Hat has released updated python3.11 packages for Red Hat Enterprise Linux 8 that fix these vulnerabilities. Users should apply the python3.11 security update as described in Red Hat advisory RHSA-2026:11062 and the referenced article https://access.redhat.com/articles/11258. Applying this official update is the recommended remediation. No additional mitigations are specified by the vendor.
Red Hat Security Advisory: python3.11 security update
Description
Red Hat has issued a security advisory for python3.11 in Red Hat Enterprise Linux 8 addressing two vulnerabilities: CVE-2026-6100, a use-after-free in decompression modules leading to arbitrary code execution or information disclosure, and CVE-2026-4786, an arbitrary code execution vulnerability via command injection in the webbrowser.open() API. The update is rated as Important by Red Hat Product Security. The advisory provides updated packages to remediate these issues.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two security vulnerabilities in python3.11 as packaged for Red Hat Enterprise Linux 8. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that can result in arbitrary code execution or information disclosure. CVE-2026-4786 is an arbitrary code execution vulnerability caused by command injection in the webbrowser.open() API. Red Hat has released updated python3.11 packages to address these issues. The advisory references Red Hat's errata RHSA-2026:11062 and provides links to updated packages and remediation instructions.
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 flaw in decompression modules. CVE-2026-4786 could allow arbitrary code execution through command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk as they enable remote code execution or data leakage on affected systems running vulnerable python3.11 versions.
Mitigation Recommendations
Red Hat has released updated python3.11 packages for Red Hat Enterprise Linux 8 that fix these vulnerabilities. Users should apply the python3.11 security update as described in Red Hat advisory RHSA-2026:11062 and the referenced article https://access.redhat.com/articles/11258. Applying this official update is the recommended remediation. No additional mitigations are specified by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:11062
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- State
- PUBLISHED
Threat ID: 6a175eefe29bf47b50edd94b
Added to database: 05/27/2026, 21:15:27 UTC
Last enriched: 08/10/2026, 20:08:59 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 94
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