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): * cpython: Excessive read buffering DoS in http.client (CVE-2025-13836) * cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084) 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
Red Hat Product Security issued an advisory (RHSA-2026:1408) for python3.12 in Red Hat Enterprise Linux 9, addressing two denial of service vulnerabilities: CVE-2025-13836, involving excessive read buffering in the http.client module, and CVE-2025-12084, involving a quadratic time complexity algorithm in xml.dom.minidom. These vulnerabilities could allow an attacker to cause a denial of service condition. The advisory provides updated python3.12 packages that fix these issues. No CVSS scores are provided in the advisory. The update is rated as having a moderate security impact.
Potential Impact
Successful exploitation of these vulnerabilities could cause denial of service conditions in applications using the affected Python modules, potentially leading to service disruption. There is no indication of code execution or data compromise. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated python3.12 packages for Red Hat Enterprise Linux 9 and its variants that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:1408 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed as an official fix available from Red Hat. No additional mitigation steps are indicated by the vendor.
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): * cpython: Excessive read buffering DoS in http.client (CVE-2025-13836) * cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084) 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security issued an advisory (RHSA-2026:1408) for python3.12 in Red Hat Enterprise Linux 9, addressing two denial of service vulnerabilities: CVE-2025-13836, involving excessive read buffering in the http.client module, and CVE-2025-12084, involving a quadratic time complexity algorithm in xml.dom.minidom. These vulnerabilities could allow an attacker to cause a denial of service condition. The advisory provides updated python3.12 packages that fix these issues. No CVSS scores are provided in the advisory. The update is rated as having a moderate security impact.
Potential Impact
Successful exploitation of these vulnerabilities could cause denial of service conditions in applications using the affected Python modules, potentially leading to service disruption. There is no indication of code execution or data compromise. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated python3.12 packages for Red Hat Enterprise Linux 9 and its variants that address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:1408 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed as an official fix available from Red Hat. No additional mitigation steps are indicated 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-2026:1408
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-13836"]
Threat ID: 6a3da1c74853345fc1820d28
Added to database: 06/25/2026, 21:46:47 UTC
Last enriched: 06/25/2026, 21:59:20 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 18
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