Buffer Access with Incorrect Length Value Affecting python3-libxml2-debuginfo package, versions <0:2.12.5-10.el10_2.4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-RHEL10-PYTHON3LIBXML2DEBUGINFO-20130126
  • published25 Sept 2026
  • disclosed5 Sept 2026

Introduced: 5 Sep 2026

CVE-2026-86142  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

Upgrade RHEL:10 python3-libxml2-debuginfo to version 0:2.12.5-10.el10_2.4 or higher.
This issue was patched in RHSA-2026:71586.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libxml2-debuginfo package and not the python3-libxml2-debuginfo package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.

CVSS Base Scores

version 3.1