CVE-2026-101023
Gitea OAuth2 refresh token grant accepts access tokens
- State
- Published
- Severity
- 9.1 Critical
- Published
- Oct 6, 2026
- Updated
- Oct 7, 2026
- Reserved
- Oct 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
GiteaGitea |
|
References
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