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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-67332

@better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

@better-auth/oauth-provider before 1.7.0-beta.4 fails to bind access-token audience to the authorization grant, allowing clients to request tokens for unrelated resources. Attackers can complete an OAuth flow and obtain access tokens whose audience targets resource servers the authorization never covered, bypassing intended authorization boundaries.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

better-auth oauth-provider

Default version status: unaffected

  • 1.4.8 to < 1.7.0-beta.4affected
  • 1.7.0-beta.4unaffected
pkg:npm/%40better-auth/oauth-provider

References