Headline

GHSA-c42h-56wx-h85q: laravel-auth0 SDK Deserialization of Untrusted Data vulnerability

Overview The laravel-auth0 SDK contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data.

Am I Affected? You are affected by this vulnerability if you meet the following preconditions:

Applications using laravel-auth0 SDK, versions between 7.0.0-BETA1 to 7.2.1.
Laravel-auth0 SDK uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.

Fix Upgrade Auth0/laravel-auth0 to the latest version (v7.17.0).

Acknowledgement Okta would like to thank Andreas Forsblom for discovering this vulnerability.

19 hours ago

ghsa

Open in Source

#vulnerability #git #php #auth

GitHub Advisory Database
GitHub Reviewed
GHSA-c42h-56wx-h85q

laravel-auth0 SDK Deserialization of Untrusted Data vulnerability

Critical severity GitHub Reviewed Published Jun 3, 2025 in auth0/laravel-auth0 • Updated Jun 6, 2025

Package

Affected versions

>= 7.0.0-BETA1, <= 7.2.1

Overview
The laravel-auth0 SDK contains a critical vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data.

Am I Affected?
You are affected by this vulnerability if you meet the following preconditions: