CVE-2021-41303: Apache Shiro

Critical severity, CVSS 9.8. EPSS: 76.1% chance of exploitation in the next 30 days.

Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.

Affected products

• Apache Shiro: before 1.8.0 (fixed in 1.8.0)
• Oracle Financial Services Crime And Compliance Management Studio: version 8.0.8.2.0 only; version 8.0.8.3.0 only

Published 2021-09-17. Last modified 2026-06-17.