GHSA-f9x3-7vq9-cph6 - Laravel TokenGuard authentication bypass through non-string API credentials

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 unauthenticated attacker may authenticate as another user without possessing that user's API token, leading to authentication bypass and account takeover on any route protected by the affected guard.