Integer Coercion Error Affecting libxml2-static package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CENTOS7-LIBXML2STATIC-19758950
  • published13 Sept 2026
  • disclosed5 Sept 2026

Introduced: 5 Sep 2026

CVE-2026-86143  (opens in a new tab)
CWE-192  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libxml2-static.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-static package and not the libxml2-static package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback.

CVSS Base Scores

version 3.1