auth0/auth0.js · Security
Auth.js SDK has Improper Permission Checking
- GHSA ID
- GHSA-8qjv-jj2q-x832
- CVE ID
- CVE-2026-42280
- Severity
- high
- Published
- Updated
- CVSS
- 7.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- CVSS v3
- 7.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Description
Description
Under specific preconditions, the Auth0.js SDK may improperly return user profile information using a valid access token when a specifically crafted invalid ID token is provided.
Am I Affected?
Users are affected if they meet each of the following preconditions:
- Applications built using Auth0.js version between 8.11.0 and 9.32.0
- The application’s access control relies on rules defined in Auth0 Actions.
Affected product and versions
auth0.js SDK v8.11.0 to v9.32.0
Resolution
Upgrade auth0/auth0.js to v10.0.0 or greater.
Acknowledgements
Okta would like to thank Quan Le (@aleister1102) for their discovery and responsible disclosure.
CWEs
- CWE-863 · Incorrect Authorization