CVE-2026-42560
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.1 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability Description
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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-287
Source
GitHub
Vendor
go
Product
github.com/go-pkgz/auth
External References
- https://github.com/go-pkgz/auth/security/advisories/GHSA-f6qq-3m3h-4g42
- https://github.com/go-pkgz/auth/commit/c0b15ee72a8401da83c01781c16636c521f42698
- https://github.com/go-pkgz/auth/releases/tag/v1.25.2
- https://github.com/go-pkgz/auth/releases/tag/v2.1.2
- https://github.com/advisories/GHSA-f6qq-3m3h-4g42
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