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Incorrect Authorization

CVE-2026-48489

High
7.5/10

Summary

When a firewall is configured with `form-login` (or any authenticator using `DefaultAuthenticationFailureHandler`) and the `failure_forward: true` option, the handler reads the `_failure_path` parameter from the failing login request and uses it as the path of an internal subrequest dispatched through `HttpKernelInterface::SUB_REQUEST`. This affects versions prior to 5.4.53, 6.x prior to 6.4.41, 7.x prior to 7.4.13, 8.x prior to 8.0.13.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-863 - Incorrect Authorization

Authorization is a security mechanism performed by an application to grant or deny access to the requested resources by verifying the privileges of the user. When an application lacks effective authorization mechanisms, it enables unauthorized users to gain unintended privileges and illegitimate access to resources. Such a vulnerability may result in exposure of sensitive information, denial of service, arbitrary code execution, and complete system takeover.

References

Advisory Timeline

  • Published