CVE-2026-101023

critical · 9.1

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.

9.1

CVSS

0.4%

EPSS (exploit prob.)

29th

EPSS percentile

2026-10-06

Published

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

Weaknesses

CWE-287

Affected products

Vendor	Product	Affected versions
gitea	gitea	< 28.1.0

Check a specific version with /api/v1/cve/match.

References

https://blog.gitea.com/release-of-28.1.0/
https://github.com/go-gitea/gitea/pull/39501
https://github.com/go-gitea/gitea/pull/39507
https://github.com/go-gitea/gitea/releases/tag/v28.1.0
https://github.com/go-gitea/gitea/security/advisories/GHSA-469m-x4mw-38r3

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-101023