CVE-2025-46345 MEDIUM

CVE-2025-46345: Auth0 Account Link Extension JWT Invalid Signature Validation

Vendor Auth0-Extensions
Product auth0-account-link-extension
Weakness CWE-290
Published May 1, 2025
Last update May 2, 2025
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Auth0 Account Link Extension is an extension aimed to help link accounts easily. Versions 2.3.4 to 2.6.6 do not verify the signature of the provided JWT. This allows the user the ability to supply a forged token and the potential to access user information without proper authorization. This issue has been patched in versions 2.6.7, 2.7.0, and 3.0.0. It is recommended to upgrade to version 3.0.0 or greater.

Key dates

02Disclosure timeline

May 1, 2025 CVE published
May 2, 2025 Record updated