{"id":"CVE-2020-17510","aliases":["GHSA-7cj4-gj8m-m2f7"],"url":"https://o3.security/vulnerability/CVE-2020-17510","summary":"Authentication bypass in Apache Shiro","details":"Apache Shiro before 1.7.0, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.","published":"2020-11-05T21:15:12.537Z","modified":"2026-07-08T05:56:33.917535609Z","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":{"score":0.08248,"percentile":0.94608,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.shiro:shiro-spring","fixedVersion":"1.7.0"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/r575301804bfac87a064359cf4b4ae9d514f2d10db7d44120765f4129%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r70098e336d02047ce4d4e69293fe8d558cd68cde06f6430398959bc4%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r70b907ccb306e9391145e2b10f56cc6914a245f91720a17a486c020a%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r852971e28f54cafa7d325bd7033115c67d613b112a2a1076817390ac%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r95bdf3703858b5f958b5e190d747421771b430d97095880db91980d6%40%3Cannounce.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r9d93dfb5df016b1a71a808486bc8f9fbafebbdbc8533625f91253f1d%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rb47d88af224e396ee34ffb88ee99fb6d04510de5722cf14b7137e6bc%40%3Cdev.shiro.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re25b8317b00a50272a7252c4552cf1a81a97984cc2111ef7728e48e0%40%3Cdev.shiro.apache.org%3E"},{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/rc2cff2538b683d480426393eecf1ce8dd80e052fbef49303b4f47171%40%3Cdev.shiro.apache.org%3E"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/08/msg00002.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:56:33.917535609Z"}}