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CVE-2026-67332

CVE-2026-67332 · @better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass

This page contains facts from public vulnerability sources. Check the original advisory before updating.

@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.

CVSS 5.3 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • oauth-provider

    Versions
    • ≥ 1.4.8, < 1.7.0-beta.4: Affected (semver)
    • 1.7.0-beta.4: Not affected (semver)

    Update to 1.7.0-beta.4

  • @better-auth/oauth-provider npm

    Affected ranges
    • SEMVER: ≥ 1.4.8, < 1.7.0-beta.4

    Update to 1.7.0-beta.4

Original sources

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