CVE-2025-64500

Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass

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

symfony

CVSS v3.1 GITHUB

7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS

1.41% chance of exploitation in the next 30 days, 72nd percentile

Nuclei

high · CWE-647

Published

2025-11-12

Updated

2025-11-13

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-64500.yaml

Security advisories

• symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm
• FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml
• https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limite…
• advisories/GHSA-3rg7-wf37-54rm
• symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac

References

• CVE Record
• NVD entry