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.
History

Tue, 13 Oct 2026 17:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*

Wed, 07 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Tue, 06 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title Gitea WebAuthn bypass during OAuth and OIDC sign-in
Weaknesses CWE-287
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published: 2026-10-06T19:33:54.375Z

Updated: 2026-10-07T20:00:46.107Z

Reserved: 2026-08-13T16:50:59.760Z

Link: CVE-2026-73278

cve-icon Vulnrichment

Updated: 2026-10-07T20:00:38.221Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T20:17:29.000

Modified: 2026-10-13T16:53:31.257

Link: CVE-2026-73278

cve-icon Redhat

No data.