Inefficient Algorithmic Complexity Affecting expat package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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 IDSNYK-CONAN-EXPAT-16624537
- published10 May 2026
- disclosed10 May 2026
- creditNick Wellnhofer
Introduced: 10 May 2026
NewCVE-2026-45186 (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 Inefficient Algorithmic Complexity due to the computational complexity of attribute name collision checks in XML parsing. An attacker can cause excessive resource consumption by providing specially crafted XML input.