CVE-2026-101023
Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.35% probability · 29th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- gitea/gitea
- Source
- 88ee5874-cf24-4952-aea0-31affedb7ff2
EPSS moved from 0.2% on 7 October 2026 to 0.4% on 26 October 2026.
References
- https://blog.gitea.com/release-of-28.1.0/Release Notes
- https://github.com/go-gitea/gitea/pull/39501Patch
- https://github.com/go-gitea/gitea/pull/39507Patch
- https://github.com/go-gitea/gitea/releases/tag/v28.1.0Release Notes
- https://github.com/go-gitea/gitea/security/advisories/GHSA-469m-x4mw-38r3Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.