CVE-2025-64500: Sensiolabs Httpfoundation

High severity, CVSS 7.3. EPSS: 1.3% chance of exploitation in the next 30 days.

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Symfony's HttpFoundation component defines an object-oriented layer for the HTTP specification. Starting in version 2.0.0 and prior to version 5.4.50, 6.4.29, and 7.3.7, the `Request` class improperly interprets some `PATH_INFO` in a way that leads to representing some URLs with a path that doesn't start with a `/`. This can allow bypassing some access control rules that are built with this `/`-prefix assumption. Starting in versions 5.4.50, 6.4.29, and 7.3.7, the `Request` class now ensures that URL paths always start with a `/`.

Affected products

• Sensiolabs Httpfoundation: from 2.0.0, before 5.4.50 (fixed in 5.4.50); from 6.0.0, before 6.4.29 (fixed in 6.4.29); from 7.0.0, before 7.3.7 (fixed in 7.3.7)
• Sensiolabs Symfony: from 2.0.0, before 5.4.50 (fixed in 5.4.50); from 6.0.0, before 6.4.29 (fixed in 6.4.29); from 7.0.0, before 7.3.7 (fixed in 7.3.7)

Published 2025-11-12. Last modified 2026-06-17.