Laravel TokenGuard authentication bypass through non-string API credentials

影響: composer:laravel/framework >= 13.0.0, < 13.29.0 → 13.29.0, composer:laravel/framework < 12.68.0 → 12.68.0

Laravel's built-in TokenGuard, when configured with a standard token-based API guard, may be bypassed to authenticate as an arbitrary existing user without knowledge of their valid API token. Under certain database configurations (MySQL/MariaDB) an attacker can submit a specially crafted, non-string credential value that is mishandled during the authentication lookup, causing the underlying query to match an unintended user record rather than failing authentication as expected. Impact An unauth…

Read on GitHub Advisory Database

On 10/24/2026, 06:50 AM, GitHub Advisory Database published "Laravel TokenGuard authentication bypass through non-string API credentials" (type: Advisory). Severity is "Critical" (critical). Related technologies: PHP, Laravel. CVE: CVE-2026-114509.