Integer Overflow or Wraparound Affecting expat package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.1% (2nd percentile)

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  • Snyk IDSNYK-CENTOS7-EXPAT-17429104
  • published23 Jun 2026
  • disclosed21 Jun 2026

Introduced: 21 Jun 2026

NewCVE-2026-56405  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 expat.

NVD Description

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

libexpat before 2.8.2 has an integer overflow in getAttributeId.

CVSS Base Scores

version 3.1