Laravel Passport security policy bypass in authentication controls
Laravel Passport versions 13.x prior to 13.7.1 contain a security policy bypass vulnerability (CVE-2026-39976) allowing attackers to circumvent authentication controls.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
The French CERT (CERT-FR) has published an advisory regarding a security policy bypass vulnerability in Laravel Passport, a popular OAuth2 server implementation for Laravel applications. The vulnerability affects all versions in the 13.x branch prior to 13.7.1 and is tracked as CVE-2026-39976.
The flaw allows an attacker to bypass security policies, potentially compromising authentication and authorization mechanisms in affected Laravel applications. While specific technical details of the bypass mechanism are not disclosed in the advisory, the vulnerability has been addressed in version 13.7.1.
Organizations using Laravel Passport should consult the GitHub security advisory GHSA-349c-2h2f-mxf6 and upgrade to version 13.7.1 or later immediately. Given that Laravel Passport handles OAuth2 authentication flows, this vulnerability could impact any application relying on it for API authentication or third-party integrations.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0682
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