cvedb.io
CVE-2026-42560
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-05-09T06:16:10.603 · Last modified 2026-06-17T10:48:02.317

Summary

auth provides authentication via oauth2, direct and email. From versions 1.18.0 to before 1.25.2 and 2.0.0 to before 2.1.2, the Patreon OAuth provider maps every authenticated Patreon account to the same local user.ID, instead of deriving a unique ID from the Patreon account returned by Patreon. In practice, this means all Patreon-authenticated users of an application using this library are collapsed into a single local identity. Any application that trusts token.User.ID as the stable account key can end up mixing or fully merging unrelated Patreon users, which can lead to cross-account access, privilege confusion, and subscription-state leakage. This issue has been patched in versions 1.25.2 and 2.1.2.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.