Critical (9.8). EPSS 76% chance of exploitation in the next 30 days. Fixed in org.apache.shiro:shiro-core 1.8.0.
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.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
76% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)