Integer Overflow or Wraparound Affecting libxml2 package, versions <2.12.7+dfsg+really2.9.14-2.1+deb13u3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.11% (2nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBXML2-19539861
  • published5 Sept 2026
  • disclosed5 Sept 2026

Introduced: 5 Sep 2026

NewCVE-2026-86139  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Echo:latest libxml2 to version 2.12.7+dfsg+really2.9.14-2.1+deb13u3 or higher.

NVD Description

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

In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.

CVSS Base Scores

version 3.1