{"id":"BIT-gitea-2026-73278","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.","aliases":["CVE-2026-73278","GHSA-92j2-6qcg-c28c"],"modified":"2026-10-14T11:10:43.374265042Z","published":"2026-10-14T08:43:01.032Z","database_specific":{"severity":"Critical","cpes":["cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*"]},"references":[{"type":"ARTICLE","url":"https://blog.gitea.com/release-of-1.27.2/"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/38805"},{"type":"FIX","url":"https://github.com/go-gitea/gitea/pull/38810"},{"type":"ARTICLE","url":"https://github.com/go-gitea/gitea/releases/tag/v1.27.2"},{"type":"ADVISORY","url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73278"}],"affected":[{"package":{"name":"gitea","ecosystem":"Bitnami","purl":"pkg:bitnami/gitea"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.16.0"},{"fixed":"1.27.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitea/BIT-gitea-2026-73278.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}