Algorithmic Complexity Affecting expat-devel package, versions <0:2.7.3-1.el10_2.1


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-CENTOS10-EXPATDEVEL-16765725
  • published20 May 2026
  • disclosed10 May 2026

Introduced: 10 May 2026

CVE-2026-45186  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade Centos:10 expat-devel to version 0:2.7.3-1.el10_2.1 or higher.

NVD Description

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

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.

CVSS Base Scores

version 3.1