Incorrect Authorization Affecting symfony/security-http package, versions >=7.4.0-BETA1, <7.4.12>=8.0.0-BETA1, <8.0.12
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Incorrect Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PHP-SYMFONYSECURITYHTTP-16786778
- published21 May 2026
- disclosed20 May 2026
- creditUnknown
Introduced: 20 May 2026
NewCVE-2026-45075 (opens in a new tab)How to fix?
Upgrade symfony/security-http to version 7.4.12, 8.0.12 or higher.
Overview
symfony/security-http is a provides an infrastructure for sophisticated authorization systems, which makes it possible to easily separate the actual authorization logic from so called user providers that hold the users credentials.
Affected versions of this package are vulnerable to Incorrect Authorization in the router due to the improper enforcement of IsGranted, IsSignatureValid, and IsCsrfTokenValid attributes checks across HTTP methods. An attacker can bypass these authorization attributes set for GET method with HEAD request to exfiltrate content or in some cases alter the data in the DB.