EUVD-2026-44740

@better-auth/sso: SSO provider may allow registration for any org member without a checking their role...

CVE-2026-53515

Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 until 1.6.11, the @better-auth/sso plugin's POST /sso/register endpoint lets any organization member attach a new SSO provider to that organization because registerSSOProvider checks only for a membership row a...

CVE-2026-53515

CVE-2026-53515 : The Better Auth library, specifically the @better-auth/sso plugin, contains a privilege escalation in versions 1.2.10 through 1.6.11. The POST /sso/register endpoint incorrectly allows any organization member to attach a new SSO provider because registerSSOProvider checks only fo...