CVE-2025-46345

Auth0 Account Link Extension JWT Invalid Signature Validation

Description

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.

References

Link	Tags
https://github.com/auth0-extensions/auth0-account-link-extension/security/advisories/GHSA-j2jh-rqff-7vmg
https://github.com/auth0-extensions/auth0-account-link-extension/pull/187

Frequently Asked Questions

What is the severity of CVE-2025-46345?: CVE-2025-46345 has been scored as a medium severity vulnerability.
How to fix CVE-2025-46345?: To fix CVE-2025-46345, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-46345 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-46345 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-46345?: CVE-2025-46345 affects auth0-extensions auth0-account-link-extension.

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Description

Category

CWE-290 – Authentication Bypass by Spoofing

References

Frequently Asked Questions