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
Two security flaws in Python for Red Hat Enterprise Linux 8.8 have been identified and addressed. 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 permits arbitrary code execution. These vulnerabilities affect Python 3.6.8 packages distributed with RHEL 8.8 Update Services for SAP Solutions and Telecommunications Update Service. Red Hat has issued an important security update (RHSA-2026:19549) containing fixes for these issues.
Potential Impact
Successful exploitation of CVE-2026-6100 could allow attackers to execute arbitrary code or disclose sensitive information due to a use-after-free condition in decompression modules. CVE-2026-4786 enables arbitrary code execution through command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk on affected systems running vulnerable Python versions, potentially leading to system compromise or data leakage.
Mitigation Recommendations
Red Hat has released updated Python 3.6.8 packages (3.6.8-51.el8_8.15) for Red Hat Enterprise Linux 8.8 variants that address these vulnerabilities. Users should apply these official updates promptly to remediate the issues. For detailed update instructions, refer to Red Hat's advisory at https://access.redhat.com/articles/11258. No alternative mitigations are specified; applying the vendor-provided patches is the recommended course of action.
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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Two security flaws in Python for Red Hat Enterprise Linux 8.8 have been identified and addressed. 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 permits arbitrary code execution. These vulnerabilities affect Python 3.6.8 packages distributed with RHEL 8.8 Update Services for SAP Solutions and Telecommunications Update Service. Red Hat has issued an important security update (RHSA-2026:19549) containing fixes for these issues.
Potential Impact
Successful exploitation of CVE-2026-6100 could allow attackers to execute arbitrary code or disclose sensitive information due to a use-after-free condition in decompression modules. CVE-2026-4786 enables arbitrary code execution through command injection in the webbrowser.open() API. Both vulnerabilities pose a high security risk on affected systems running vulnerable Python versions, potentially leading to system compromise or data leakage.
Mitigation Recommendations
Red Hat has released updated Python 3.6.8 packages (3.6.8-51.el8_8.15) for Red Hat Enterprise Linux 8.8 variants that address these vulnerabilities. Users should apply these official updates promptly to remediate the issues. For detailed update instructions, refer to Red Hat's advisory at https://access.redhat.com/articles/11258. No alternative mitigations are specified; applying the vendor-provided patches is the recommended course of action.
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: 05/27/2026, 21:15:26 UTC
Last enriched: 07/03/2026, 00:52:33 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 72
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