CVE-2026-67331: Better-Auth Scim

High severity, CVSS 8.3. EPSS: 0.4% chance of exploitation in the next 30 days.

better-auth SCIM versions from 1.5.0 before 1.7.0-beta.4 fail to bind non-organization SCIM providers to their creator by default, allowing authenticated users to manage other users' providers. Attackers can regenerate SCIM bearer tokens, invalidate legitimate tokens, and authenticate to SCIM API routes with the attacker-controlled token.

Affected products

• Better-Auth Scim: from 1.5.0, before 1.7.0-beta.4 (fixed in 1.7.0-beta.4)

Published 2026-08-01. Last modified 2026-10-08.