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Authentication mechanism absence or evasion In symfony

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 /.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Component
Affected version
Patched versions

Aliases

1. CVE-2025-645002. NVD-2025-645003. OSV-2025-645004. OSV-DEBIAN-2025-645005. GHSA-3rg7-wf37-54rm6. GCVE-2025-645007. SECURITY-TRACKER-CVE-2025-64500

References

1. https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm2. https://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac3. https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2025-64500.yaml4. https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml5. https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass6. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-64500.yaml

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