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 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

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-25)

CWE

CWE-287

Published

2026-10-06

Modified

2026-10-13

Record from

the NVD, synced 2026-10-19

Affected

• gitea:gitea

References

• 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
• https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c

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