CVE-2025-64500
Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass
Description
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 `/`.
How to fix CVE-2025-64500
To remediate CVE-2025-64500, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 5.4.50 or later
- —upgrade to 5.4.50 or later
Is CVE-2025-64500 being exploited?
Moderate — EPSS is 6.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0
- from 0, < 5.4.50
- >= 2.0.0, < 5.4.50
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |