{"id":"CVE-2026-77582","revision":"d381bc179fa546abb4d5e7958ab8ef7c","records":[{"revision":"d381bc179fa546abb4d5e7958ab8ef7c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-77582","aliases":[],"title":"Tinyauth: User enumeration attack by timing oracle","description":"Tinyauth is an authentication and authorization server. Prior to 5.1.0, Tinyauth exposes a remotely observable timing difference between authentication attempts for existing and nonexistent local usernames. internal/controller/user_controller.go loginHandler and internal/middleware/context_middleware.go basicAuth return quickly after internal/service/auth_service.go reports a missing user, while an existing user causes bcrypt password verification work. Repeated measurements can therefore disclose valid usernames and support targeted credential attacks. This issue is fixed in version 5.1.0.","state":0,"publishedAt":"2026-09-21T16:43:43.175+00:00","modifiedAt":"2026-09-23T19:16:39+00:00","affected":[{"ecosystem":"Vendor product","name":"tinyauth","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tinyauthapp\",\n                    \"product\": \"tinyauth\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 5.1.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"}],"references":["https://github.com/tinyauthapp/tinyauth/security/advisories/GHSA-456h-ww26-f758","https://github.com/tinyauthapp/tinyauth/pull/1004","https://github.com/tinyauthapp/tinyauth/commit/c22925c2fba981875d0a2b09dd3ee41c0ae4c310","https://github.com/tinyauthapp/tinyauth/releases/tag/v5.1.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77582","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77582","identifiers":["CVE-2026-77582"]},"retained":false,"historicalAffected":[]}],"coverage":[]}