CVE-2020-1957: Apache Shiro

Critical severity, CVSS 9.8. EPSS: 23.3% chance of exploitation in the next 30 days.

Apache Shiro before 1.5.2, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Affected products

• Apache Shiro: before 1.5.2 (fixed in 1.5.2)
• Debian Debian Linux: version 8.0 only

Published 2020-03-25. Last modified 2026-06-17.