CVE WatchOct 13, 2026

CVE-2026-73278

Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second fa

CVSS

9.8

Critical

EPSS

0.5%

p39

KEV

—

Exploit Today

0-100

Published: Oct 6, 2026 · Last modified: Oct 13, 2026 · CWE-287

EPSS · 30d

0.2%EPSS · 30 days0.5%

2026-10-072026-10-22

Technical 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.

Official references

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