CVE-2026-67331: better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass

Published Aug 1, 2026
·
Updated

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 Software

1 affected component
better-auth SCIM>=1.5.0<1.7.0-beta.4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade better-auth SCIM to a version that resolves this vulnerability.

    Fixed in 1.7.0-beta.4

Event History

Aug 1, 2026
CVE Published
via MITRE·12:22 PM
Data Sourced
via MITRE·12:22 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:17 PM
DescriptionSeverityWeakness
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