Critical (9.8) in Apache Shiro. In CISA KEV since 2021-11-03. EPSS 93% chance of exploitation in the next 30 days. Fixed in org.apache.shiro:shiro-core 1.2.5.
Apache Shiro before 1.2.5, when a cipher key has not been configured for the "remember me" feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.
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
93% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)