CVE-2021-44138: Caucho Resin

High severity, CVSS 7.5. EPSS: 12.3% chance of exploitation in the next 30 days.

There is a Directory traversal vulnerability in Caucho Resin, as distributed in Resin 4.0.52 - 4.0.56, which allows remote attackers to read files in arbitrary directories via a ; in a pathname within an HTTP request.

Affected products

• Caucho Resin: from 4.0.52, up to and including 4.0.56

Published 2022-04-04. Last modified 2026-06-17.