CVE-2020-13933: Apache Shiro

High severity, CVSS 7.5. EPSS: 44.4% chance of exploitation in the next 30 days.

Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.

Affected products

• Apache Shiro: before 1.6.0 (fixed in 1.6.0)
• Debian Debian Linux: version 9.0 only

Published 2020-08-17. Last modified 2026-06-17.