Skip to content
OpenAdvisories
Critical · 9.1 CVE-2026-121802 EUVD-2026-116694GHSA-hv45-wgqh-c9j5

@better-auth/expo before 1.7.16 allows certain account-takeover outcomes (e.g., unauthenticated changes of any account's email address), be…

Published Nov 4, 2026 · Updated Nov 6, 2026 · Assigned by mitre

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.

Affected products

VendorProductAffectedFixed
better-auth Better Auth < 1.7.16 1.7.16

References