Red Hat Security Advisory: python3.12 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 python3.12 as packaged for Red Hat Enterprise Linux 9.4. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that may 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. Red Hat has issued a security update (RHSA-2026:17525) that addresses these issues by updating python3.12 packages. The advisory includes multiple updated packages for various architectures and Red Hat product variants. No CVSS scores are provided in the advisory, but Red Hat rates the update as Important.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code or cause information disclosure on affected systems running vulnerable python3.12 versions. The use-after-free in decompression modules (CVE-2026-6100) and command injection in webbrowser.open() (CVE-2026-4786) both present high security risks. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated python3.12 packages for Red Hat Enterprise Linux 9.4 that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:17525 and the referenced article https://access.redhat.com/articles/11258. Applying this official update is the recommended remediation. Patch status is confirmed as fixed in the updated packages.
Red Hat Security Advisory: python3.12 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two security vulnerabilities in python3.12 as packaged for Red Hat Enterprise Linux 9.4. CVE-2026-6100 is a use-after-free vulnerability in decompression modules that may 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. Red Hat has issued a security update (RHSA-2026:17525) that addresses these issues by updating python3.12 packages. The advisory includes multiple updated packages for various architectures and Red Hat product variants. No CVSS scores are provided in the advisory, but Red Hat rates the update as Important.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code or cause information disclosure on affected systems running vulnerable python3.12 versions. The use-after-free in decompression modules (CVE-2026-6100) and command injection in webbrowser.open() (CVE-2026-4786) both present high security risks. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated python3.12 packages for Red Hat Enterprise Linux 9.4 that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:17525 and the referenced article https://access.redhat.com/articles/11258. Applying this official update is the recommended remediation. Patch status is confirmed as fixed in the updated packages.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:17525
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-6100"]
- Cvss Version
- null
Threat ID: 6a175eeee29bf47b50edd246
Added to database: 05/27/2026, 21:15:26 UTC
Last enriched: 07/03/2026, 00:52:55 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 26
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