{"schema":"threatline.record/2","record":{"id":"CVE-2026-104627","aliases":["GHSA-mf69-7pqq-86vx"],"summary":"Gitea OpenID account linking without session binding","details":"The Gitea OpenID association callback in the security settings accepted a positive OpenID 2.0 assertion without checking that the signed-in user had started the linking. Because OpenID 2.0 allows unsolicited assertions, an attacker-controlled OpenID provider could attach the attacker's identity to the account of a signed-in victim who opened a crafted link, and the attacker could then sign in as the victim through OpenID login, which does not apply the local TOTP or WebAuthn checks. The callback now requires a time-limited `state` value bound to the user.","categories":["Unclassified"],"product":"Gitea","vendor":"Gitea","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104627","source_modified_at":"2026-10-19T20:20:15.460Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"28.1.0","status":"affected","version":"0","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"GitHub Advisory Database","source_url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vx","source_modified_at":"2026-10-18T18:44:35Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"go","name":"gitea.dev"},"range":"<= 28.1.0"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vx","source_modified_at":"2026-10-18T18:44:35Z","fetched_at":"2026-10-23T20:37:03.234832Z","package":{"ecosystem":"go","name":"gitea.dev"},"version":"28.2.0"}],"cvss":5.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00119,"percentile":0.01673,"score_date":"2026-10-23"},"published_at":"2026-10-18T18:51:06.543Z","modified_at":"2026-10-19T20:20:15.460Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104627","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T20:20:15.460Z"},{"source":"GitHub Advisory Database","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vx","fetched_at":"2026-10-23T20:37:03.234832Z","source_modified_at":"2026-10-18T18:44:35Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104627","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vx","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39642","tags":["patch"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/39744","tags":["patch"]},{"source":"CVE List","url":"https://blog.gitea.com/release-of-28.2.0/","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/releases/tag/v28.2.0","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-19T20:20:04.646263Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-19T20:20:15.460Z","content_hash":"a3c79e35e5d929bd5e7b362f95f77a8e168faff80edc5daf3ecd0fd76f2ffe58"}}