CVE-2026-73278Gitea WebAuthn bypass during OAuth and OIDC sign-in
Updated under an hour ago ()
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It affects Gitea. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.47%, higher than 39% of scored CVEs.
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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
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.47% (percentile 39)
- Assigned by
- Gitea
- NVD analysis
- Analyzed
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Gitea Gitea gitea:gitea (from the name) | from 1.16.0 through 1.27.1 | CNA record |
gitea gitea gitea:gitea | from 1.16.0 before 1.27.2 | NVD |
References
- https://github.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28cvendor-advisory
- https://blog.gitea.com/release-of-1.27.2/release-notes
- https://github.com/go-gitea/gitea/pull/38805patch
- https://github.com/go-gitea/gitea/pull/38810patch
- https://github.com/go-gitea/gitea/releases/tag/v1.27.2release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.