CVSS 9.1 (critical) · published 2026-10-06
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.
Affected products (NVD): gitea gitea
Fixed in (NVD): 28.1.0
Weakness: CWE-287
Source: NVD CVE-2026-101023
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