Red Hat Security Advisory: python3 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 python3 packages for Red Hat Enterprise Linux 8.8. CVE-2026-6100 involves a use-after-free flaw in decompression modules that could allow arbitrary code execution or information disclosure. CVE-2026-4786 is a command injection vulnerability in the webbrowser.open() API that could lead to arbitrary code execution. Both vulnerabilities are rated with high severity by Red Hat Product Security. The advisory provides updated python3 packages to fix these issues.
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 could allow an attacker to execute arbitrary code via command injection through the webbrowser.open() API. These impacts could compromise system integrity and confidentiality on affected Red Hat Enterprise Linux 8.8 systems running vulnerable python3 packages.
Mitigation Recommendations
Red Hat has released updated python3 packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the official security update as detailed in Red Hat advisory RHSA-2026:19549 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated beyond applying the provided patches.
Red Hat Security Advisory: python3 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 advisory covers two security vulnerabilities in python3 packages for Red Hat Enterprise Linux 8.8. CVE-2026-6100 involves a use-after-free flaw in decompression modules that could allow arbitrary code execution or information disclosure. CVE-2026-4786 is a command injection vulnerability in the webbrowser.open() API that could lead to arbitrary code execution. Both vulnerabilities are rated with high severity by Red Hat Product Security. The advisory provides updated python3 packages to fix these issues.
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 could allow an attacker to execute arbitrary code via command injection through the webbrowser.open() API. These impacts could compromise system integrity and confidentiality on affected Red Hat Enterprise Linux 8.8 systems running vulnerable python3 packages.
Mitigation Recommendations
Red Hat has released updated python3 packages for Red Hat Enterprise Linux 8.8 that address these vulnerabilities. Users should apply the official security update as detailed in Red Hat advisory RHSA-2026:19549 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated beyond applying the provided patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19549
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eeee29bf47b50edca26
Added to database: 5/27/2026, 9:15:26 PM
Last enriched: 5/27/2026, 9:22:16 PM
Last updated: 5/29/2026, 7:38:01 PM
Views: 10
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