— Unscored

The OAuth2 userinfo endpoint (/login/oauth/userinfo) decided whether to limit the groups claim to public organizations by re-parsing the…

CVE-2026-118394

The OAuth2 userinfo endpoint (/login/oauth/userinfo) decided whether to limit the groups claim to public organizations by re-parsing the Authorization header as an OAuth2 access token instead of using the scope of the credential that authenticated the request. When a public-only OAuth2 token was sent as a query parameter or form field, or a public-only personal access token was used, that scope came back empty and the claim listed the token owner's private organizations, teams and concealed memberships. The disclosure is limited to the owner's organization and team names and memberships; no repository content is exposed. The endpoint now uses the scope of the authenticating token.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 1 November 2026
Last updated: 1 November 2026
Affected: Gitea
Assigner: Gitea

At the source

EUVD (ENISA)

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