CVE-2026-73278: Gitea

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Gitea Gitea: from 1.16.0, up to and including 1.27.1

Published 2026-10-06. Last modified 2026-10-07.