Missing Initialization of Resource Affecting expat package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.47% (40th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-EXPAT-21663490
  • published24 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-113351  (opens in a new tab)
CWE-909  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable expat.

NVD Description

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

libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.

CVSS Base Scores

version 3.1