CVE-2026-121802
CRITICAL
NVD
CVSS Score
9.1
Severity
CRITICAL
Published
Nov 04, 2026
Vendor
unknown
Description
@better-auth/expo before 1.7.16 allows certain account-takeover outcomes (e.g., unauthenticated changes of any account's email address), because it signs a caller-supplied state value without checking whether that value had been issued by the server. NOTE: the application secret must be rotated after updating to a fixed version.