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
This advisory covers two denial of service vulnerabilities in the CPython 3.12 implementation distributed with Red Hat Enterprise Linux 10. CVE-2025-13836 is an excessive read buffering issue in the http.client module that can lead to denial of service. CVE-2025-12084 is caused by a quadratic time complexity algorithm in xml.dom.minidom that can also result in denial of service. Red Hat has released updated python3.12 packages to address these vulnerabilities. The advisory references Red Hat Enterprise Linux 10 and its Extended Update Support versions across multiple architectures. No CVSS base score is provided in the advisory.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in applications using the affected CPython modules (http.client and xml.dom.minidom). This may result in application or service unavailability on affected systems running Red Hat Enterprise Linux 10 with python3.12. There is no indication of remote 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 10 and related variants that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:1828 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. 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
This advisory covers two denial of service vulnerabilities in the CPython 3.12 implementation distributed with Red Hat Enterprise Linux 10. CVE-2025-13836 is an excessive read buffering issue in the http.client module that can lead to denial of service. CVE-2025-12084 is caused by a quadratic time complexity algorithm in xml.dom.minidom that can also result in denial of service. Red Hat has released updated python3.12 packages to address these vulnerabilities. The advisory references Red Hat Enterprise Linux 10 and its Extended Update Support versions across multiple architectures. No CVSS base score is provided in the advisory.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in applications using the affected CPython modules (http.client and xml.dom.minidom). This may result in application or service unavailability on affected systems running Red Hat Enterprise Linux 10 with python3.12. There is no indication of remote 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 10 and related variants that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:1828 and the referenced article https://access.redhat.com/articles/11258 to remediate the issues. 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-2026:1828
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-13836"]
Threat ID: 6a3da1c74853345fc18209b6
Added to database: 06/25/2026, 21:46:47 UTC
Last enriched: 06/25/2026, 21:58:38 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 29
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