9.8

CVE-2026-73278

Gitea WebAuthn bypass during OAuth and OIDC sign-in

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGitea
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Produkt Gitea
Default Statusunaffected
Version <= 1.27.1
Version 1.16.0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.47% 0.383
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c
https://blog.gitea.com/release-of-1.27.2/
https://github.com/go-gitea/gitea/pull/38805
https://github.com/go-gitea/gitea/pull/38810
https://github.com/go-gitea/gitea/releases/tag/v1.27.2