# laravel-auth0 SDK Deserialization of Untrusted Data vulnerability

Source: https://junglewise.ai/threats/laravel-auth0-sdk-deserialization-of-untrusted-data-vulnerability-b3c52865  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-06-06  
License: CC BY 4.0 with a link back

Severity: medium · CVSS 4 · Published 2025-06-06

laravel-auth0 SDK Deserialization of Untrusted Data vulnerability

Technologies: [auth0/login (Packagist)](https://junglewise.ai/threats/technologies/auth0-login). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Medium severity, with a CVSS score of 4, published 6 June 2025.

**Which products and versions are affected?** auth0/login (Packagist) ECOSYSTEM:introduced=7.0.0-BETA1,fixed=7.2.2.

**Is there a fix for This vulnerability?** Yes. auth0/login (Packagist): upgrade to 7.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run auth0/login (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- auth0/login (Packagist): upgrade to 7.2.2 or later

  ```sh
  composer require auth0/login:^7.2.2
  ```


## Affected products

- auth0/login (Packagist) ECOSYSTEM:introduced=7.0.0-BETA1,fixed=7.2.2

## Related threats

- [Auth0 laravel-auth0 SDK has Insufficient Entropy in Cookie Encryption](https://junglewise.ai/threats/auth0-laravel-auth0-sdk-has-insufficient-entropy-in-cookie-encryption-2599e40d)
- [Auth0 Laravel SDK has Improper Audience Validation via Auth0-PHP SDK dependency](https://junglewise.ai/threats/auth0-laravel-sdk-has-improper-audience-validation-via-auth0-php-sdk-c9c60521)
- [laravel-auth0 SDK Does Not Properly Handle File Types in Bulk User Import](https://junglewise.ai/threats/laravel-auth0-sdk-does-not-properly-handle-file-types-in-bulk-user-c1e124e3)
- [laravel-auth0 SDK Vulnerable to Brute Force Authentication Tags of CookieStore Sessions](https://junglewise.ai/threats/laravel-auth0-sdk-vulnerable-to-brute-force-authentication-tags-of-eea1a889)