Description
Laravel Passport provides OAuth2 server support to Laravel. From 13.0.0 to before 13.7.1, there is an Authentication Bypass for client_credentials tokens. the league/oauth2-server library sets the JWT sub claim to the client identifier (since there-s no user). The token guard then passes this value to retrieveById() without validating it-s actually a user identifier, potentially resolving an unrelated real user. Any machine-to-machine token can inadvertently authenticate as an actual user. This vulnerability is fixed in 13.7.1.
CVSS 7.1EPSS 0.28900000000000003%Risk 0.73
View source- Published
- 2026-04-09 17:16:31
- Affected versions
- >=13.0.0,<13.7.1
- Type
- Package
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N