{"api_version":"1","generated_at":"2026-10-06T21:46:10+00:00","cve":"CVE-2026-73278","urls":{"html":"https://cve.report/CVE-2026-73278","api":"https://cve.report/api/cve/CVE-2026-73278.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-73278","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-73278"},"summary":{"title":"Gitea WebAuthn bypass during OAuth and OIDC sign-in","description":"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.","state":"PUBLISHED","assigner":"Gitea","published_at":"2026-10-06 20:17:29","updated_at":"2026-10-06 20:17:29"},"problem_types":["CWE-287","CWE-287 CWE-287: Improper Authentication"],"metrics":[],"references":[{"url":"https://github.com/go-gitea/gitea/pull/38805","name":"https://github.com/go-gitea/gitea/pull/38805","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://blog.gitea.com/release-of-1.27.2/","name":"https://blog.gitea.com/release-of-1.27.2/","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/pull/38810","name":"https://github.com/go-gitea/gitea/pull/38810","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2","name":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c","name":"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c","refsource":"88ee5874-cf24-4952-aea0-31affedb7ff2","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73278","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73278","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Gitea","product":"Gitea","version":"affected 1.16.0 1.27.1 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"https://github.com/MindflareX","lang":"en"},{"source":"CNA","value":"https://github.com/AdamKorcz","lang":"en"},{"source":"CNA","value":"https://github.com/jaeyoon-kim-dev","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"gitea.dev","product":"Gitea","vendor":"Gitea","versions":[{"lessThanOrEqual":"1.27.1","status":"affected","version":"1.16.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"reporter","value":"https://github.com/MindflareX"},{"lang":"en","type":"reporter","value":"https://github.com/AdamKorcz"},{"lang":"en","type":"reporter","value":"https://github.com/jaeyoon-kim-dev"}],"descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T19:33:54.375Z","orgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","shortName":"Gitea"},"references":[{"name":"GitHub Security Advisory GHSA-92j2-6qcg-c28c","tags":["vendor-advisory"],"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c"},{"name":"Gitea 1.27.2 release announcement","tags":["release-notes"],"url":"https://blog.gitea.com/release-of-1.27.2/"},{"name":"Fix: go-gitea/gitea pull request #38805","tags":["patch"],"url":"https://github.com/go-gitea/gitea/pull/38805"},{"name":"Fix: go-gitea/gitea pull request #38810","tags":["patch"],"url":"https://github.com/go-gitea/gitea/pull/38810"},{"name":"go-gitea/gitea v1.27.2 release","tags":["release-notes"],"url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2"}],"title":"Gitea WebAuthn bypass during OAuth and OIDC sign-in"}},"cveMetadata":{"assignerOrgId":"88ee5874-cf24-4952-aea0-31affedb7ff2","assignerShortName":"Gitea","cveId":"CVE-2026-73278","datePublished":"2026-10-06T19:33:54.375Z","dateReserved":"2026-08-13T16:50:59.760Z","dateUpdated":"2026-10-06T19:33:54.375Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 20:17:29","lastModifiedDate":"2026-10-06 20:17:29","problem_types":["CWE-287","CWE-287 CWE-287: Improper Authentication"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"73278","Ordinal":"1","Title":"Gitea WebAuthn bypass during OAuth and OIDC sign-in","CVE":"CVE-2026-73278","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"73278","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Gitea WebAuthn bypass during OAuth and OIDC sign-in"}]}}}