CVE-2026-104627Gitea OpenID account linking without session binding
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
The Gitea OpenID association callback in the security settings accepted a positive OpenID 2.0 assertion without checking that the signed-in user had started the linking. Because OpenID 2.0 allows unsolicited assertions, an attacker-controlled OpenID provider could attach the attacker's identity to the account of a signed-in victim who opened a crafted link, and the attacker could then sign in as the victim through OpenID login, which does not apply the local TOTP or WebAuthn checks. The callback now requires a time-limited `state` value bound to the user.
- CVSS
- Not yet scored
- Weakness (CWE)
- CWE-287, CWE-352
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Gitea
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Gitea Gitea gitea:gitea (from the name) | through 28.1.0 | CNA record |
References
- https://github.com/go-gitea/gitea/security/advisories/GHSA-mf69-7pqq-86vxvendor-advisory
- https://github.com/go-gitea/gitea/pull/39642patch
- https://github.com/go-gitea/gitea/pull/39744patch
- https://blog.gitea.com/release-of-28.2.0/release-notes
- https://github.com/go-gitea/gitea/releases/tag/v28.2.0release-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.