{"id":"CVE-2021-41303","aliases":["GHSA-f6jp-j6w3-w9hm"],"url":"https://o3.security/vulnerability/CVE-2021-41303","summary":"Apache Shiro vulnerable to a specially crafted HTTP request causing an authentication bypass","details":"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.","published":"2021-09-17T09:15:09.267Z","modified":"2026-07-08T05:59:57.127735274Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.shiro:shiro-core","fixedVersion":"1.8.0"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a42221e2c41b%40%3Cuser.shiro.apache.org%3E"},{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/re470be1ffea44bca28ccb0e67a4cf5d744e2d2b981d00fdbbf5abc13%40%3Cannounce.shiro.apache.org%3E"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220609-0001/"},{"type":"FIX","url":"https://www.oracle.com/security-alerts/cpujul2022.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:57.127735274Z"}}