{"schema":"threatline.record/2","record":{"id":"CVE-2026-73278","aliases":["GHSA-92j2-6qcg-c28c"],"summary":"Gitea WebAuthn bypass during OAuth and OIDC sign-in","details":"Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second factor. A party able to authenticate through the affected external identity flow can obtain a full session without the passkey verification enforced during password login. One affected path can also persist an external identity link, extending the compromise beyond the initial session; accounts with TOTP configured are outside the reported WebAuthn-only scenario.","categories":["Unclassified"],"product":"Gitea","vendor":"Gitea","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-73278","source_modified_at":"2026-10-07T20:00:46.107Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Gitea","vendor":"Gitea","versions":[{"version":"1.16.0","status":"affected","lessThanOrEqual":"1.27.1","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00466,"percentile":0.39366,"score_date":"2026-10-23"},"published_at":"2026-10-06T19:33:54.375Z","modified_at":"2026-10-07T20:00:46.107Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-73278","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T20:00:46.107Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-73278","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://blog.gitea.com/release-of-1.27.2/","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/38805","tags":["patch"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/pull/38810","tags":["patch"]},{"source":"CVE List","url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2","tags":["release-notes"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-07T20:00:20.177733Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T20:00:46.107Z","content_hash":"a1e0a11c17beaee92c2afe30bdda14665cd31839218c556cb0f21adcbafe8826"}}