Red Hat Security Advisory: python 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: 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 vulnerability in Python's cpython implementation allows arbitrary code execution through command injection in the webbrowser.open() API. The flaw is due to improper sanitization of input that reaches system commands, categorized under CWE-88. Red Hat has released updated Python packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support to remediate this issue. The advisory does not provide a CVSS score but rates the impact as Important. The vulnerability affects multiple architectures supported under RHEL 7 ELS, including x86_64, s390x, ppc64, and ppc64le.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on affected systems via the webbrowser.open() API. This could lead to unauthorized system control or compromise. The Red Hat advisory rates the impact as Important, indicating a high severity level. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated Python packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support that fix this vulnerability. Users should apply the updates as described in the Red Hat advisory (RHSA-2026:19589) and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor beyond applying the official patch.
Red Hat Security Advisory: python 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: 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.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Python's cpython implementation allows arbitrary code execution through command injection in the webbrowser.open() API. The flaw is due to improper sanitization of input that reaches system commands, categorized under CWE-88. Red Hat has released updated Python packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support to remediate this issue. The advisory does not provide a CVSS score but rates the impact as Important. The vulnerability affects multiple architectures supported under RHEL 7 ELS, including x86_64, s390x, ppc64, and ppc64le.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on affected systems via the webbrowser.open() API. This could lead to unauthorized system control or compromise. The Red Hat advisory rates the impact as Important, indicating a high severity level. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated Python packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support that fix this vulnerability. Users should apply the updates as described in the Red Hat advisory (RHSA-2026:19589) and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19589
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a175eeee29bf47b50edca12
Added to database: 5/27/2026, 9:15:26 PM
Last enriched: 5/27/2026, 9:21:47 PM
Last updated: 5/29/2026, 7:22:50 AM
Views: 5
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