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.
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Fixes
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References
History
Tue, 06 Oct 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Gitea OAuth2 refresh token grant accepts access tokens | |
| References |
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MITRE
Status: PUBLISHED
Assigner: Gitea
Published:
Updated: 2026-10-06T21:34:53.642Z
Reserved: 2026-10-04T22:02:04.874Z
Link: CVE-2026-101023
Vulnrichment
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