NULL Pointer Dereference Affecting expat package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.01% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CONAN-EXPAT-15683085
  • published18 Mar 2026
  • disclosed16 Mar 2026
  • creditUnknown

Introduced: 16 Mar 2026

NewCVE-2026-32776  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference via the external parameter entity with empty text if referenced inside an entity declaration value processing. An attacker can cause a denial of service by providing empty content to this component.

CVSS Base Scores

version 4.0
version 3.1