Auth bypass in Better-auth

CVE-2026-53514

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, and in 1.6.14 and later when invitation IDs can be obtained outside the invited mailbox and requireEmailVerificationOnInvitation: true is not enabl…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-53514?
CVE-2026-53514 is a high-severity vulnerability in Better-auth, classified under Improper Authentication. CVSS score: 7.7/10. Published 2026-07-15.
How severe is CVE-2026-53514?
High severity. CVSS v3 base score is 7.7 out of 10.