CVE-2026-41427

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.5, the clientPrivileges option documents a create action, but the OAuth client creation endpoints did not invoke the hook before persisting new clients. Deployments that configured clientPrivileges to restrict client registration were not actually restricted — any authenticated user could reach the create endpoints and register an OAuth client with attacker-chosen redirect URIs and metadata. This vulnerability is fixed in 1.6.5.

CVSS

No CVSS.

References

Link	Resource
https://github.com/better-auth/better-auth/security/advisories/GHSA-xr8f-h2gw-9xh6

Configurations

No configuration.

History

24 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-24 20:16

Updated : 2026-04-24 20:16

NVD link : CVE-2026-41427

Mitre link : CVE-2026-41427

CVE.ORG link : CVE-2026-41427

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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