CVE-2023-52426: Libexpat Project Libexpat

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

Affected products

• Libexpat Project Libexpat: up to and including 2.5.0

Published 2024-02-04. Last modified 2026-06-17.