{"id":"CVE-2026-44596","aliases":["GHSA-w5r6-mcgq-7pq4"],"url":"https://o3.security/vulnerability/CVE-2026-44596","summary":"Yamcs: No Rate Limiting on Authentication Endpoint","details":"Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttling, so an unauthenticated remote attacker could perform unlimited password-guessing attempts against any user account, significantly increasing the risk of successful brute-force attacks. This issue is fixed in versions 5.12.7 and 5.13.0.","published":"2026-07-16T16:04:11.794Z","modified":"2026-08-12T16:24:29.884802Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},"epss":{"score":0.0206,"percentile":0.79863,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.yamcs:yamcs-core","fixedVersion":"5.12.7"}],"fix":{"url":"https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83","label":"yamcs/yamcs@309218c"},"references":[{"type":"WEB","url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7"},{"type":"WEB","url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44596.json"},{"type":"ADVISORY","url":"https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44596"},{"type":"FIX","url":"https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83"},{"type":"FIX","url":"https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T16:24:29.884802Z"}}