CVE-2026-73804Gitea API token scope escalation through HTTP signatures
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Gitea allows a token with write:user scope to register an attacker-controlled SSH public key on the token owner's account. API requests signed with the corresponding private key authenticate as that account through HTTP Signature without API token scope information, causing route-level token scope checks to be skipped. This converts a user-scoped token into an unscoped API authentication method while retaining the account's normal role and repository permissions.
- CVSS
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-266, CWE-863
- 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
- Deferred
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Gitea Gitea gitea:gitea (from the name) | through 1.26.4 | CNA record |
References
- https://github.com/go-gitea/gitea/security/advisories/GHSA-q55v-4cmj-xh65vendor-advisory
- https://blog.gitea.com/release-of-1.27.2/release-notes
- https://github.com/go-gitea/gitea/pull/38862patch
- https://github.com/go-gitea/gitea/pull/38895patch
- 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.