laravel-auth0 SDK Deserialization of Untrusted Data vulnerability
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- Code execution
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-502.
Summary
**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: 1. Applications using laravel-auth0 SDK, versions between 7.0.0-BETA1 to 7.2.1. 2. 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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | auth0/login (Packagist) | 7.0.0-BETA1 to before 7.2.2 | 7.2.2 | Patch available | GHSA-c42h-56wx-h85q |
- auth0/login (Packagist) Vendor— Affected 7.0.0-BETA1 to before 7.2.2 Fixed in 7.2.2 Patch available GHSA-c42h-56wx-h85q
Remediation
- Fix · GHSA-c42h-56wx-h85q auth0/login (Packagist) Fixed in 7.2.2 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-c42h-56wx-h85q
References
Other 5
- https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492
- https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q
- https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34
- https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r
- https://github.com/auth0/laravel-auth0
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences