CVE-2025-64500
HIGH7.3EPSS 6.3%Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass
Published: 11/12/2025Modified: 5/27/2026
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 `/`.
Affected packages (3)
- Debian/symfonyfrom 0
- Packagist/symfony/http-foundationfrom 0, < 5.4.50
- Packagist/symfony/symfony>= 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 |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-64500
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-64500
- PATCHhttps://github.com/symfony/symfony
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2025-64500.yaml
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml
- WEBhttps://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac
- WEBhttps://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm
- WEBhttps://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass