Vulnerability Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, DefaultAuthenticationFailureHandler honored the request-supplied _failure_path parameter when failure_forward: true was enabled, allowing an unauthenticated failing login request to dispatch a subrequest to access_control-protected GET routes that skipped firewall listeners. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sensiolabs | Symfony | < 5.4.53 |
Related Weaknesses (CWE)
References
- https://github.com/symfony/symfony/commit/c48a4276309e11aedeeb0ce3a89dfbf0b4fe04Patch
- https://github.com/symfony/symfony/releases/tag/v5.4.53ProductRelease Notes
- https://github.com/symfony/symfony/releases/tag/v6.4.41ProductRelease Notes
- https://github.com/symfony/symfony/releases/tag/v7.4.13ProductRelease Notes
- https://github.com/symfony/symfony/security/advisories/GHSA-6h46-9jf5-q59xPatchVendor Advisory
FAQ
What is CVE-2026-48489?
CVE-2026-48489 is a vulnerability with a CVSS score of 7.5 (HIGH). Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, DefaultAuthenticationFailureHandler honored the request-s...
How severe is CVE-2026-48489?
CVE-2026-48489 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-48489?
Check the references section above for vendor advisories and patch information. Affected products include: Sensiolabs Symfony.