CVE-2026-73278
criticalGitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second factor.
Vendor / product: Gitea — gitea
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://blog.gitea.com/release-of-1.27.2/ 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/38805 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/pull/38810 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/releases/tag/v1.27.2 88ee5874-cf24-4952-aea0-31affedb7ff2
- https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c 88ee5874-cf24-4952-aea0-31affedb7ff2