{"id":"CVE-2026-51584","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-51584","summary":"An issue in usememos v0.27.1 allows a remote attacker to achieve account takeover via the ssoCredentials branch of the SignIn handler in server/router/api/v1/auth_service.go, because…","details":"An issue in usememos v0.27.1 allows a remote attacker to achieve account takeover via the ssoCredentials branch of the SignIn handler in server/router/api/v1/auth_service.go, because SSO identity is matched only on an attacker-controllable identifier without binding to the IdP's stable subject claim.","published":"2026-08-11T14:17:14.463","modified":"2026-08-12T19:17:35.150","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":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://gist.github.com/seiyaibuki0523/33a4c06eb7d10914e5e5152ecd5100ec"},{"type":"WEB","url":"https://github.com/usememos/memos"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T19:17:35.150"}}