CVE-2025-64500
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-12

Last updated on: 2025-11-12

Assigner: GitHub, Inc.

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 `/`.
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Meta Information
Published
2025-11-12
Last Modified
2025-11-12
Generated
2026-05-06
AI Q&A
2025-11-13
EPSS Evaluated
2026-05-05
NVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
symfony http_foundation *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-647 The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical. This can allow a non-canonical URL to bypass the authorization.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Symfony PHP framework's HttpFoundation component, specifically in the Request class. In versions from 2.0.0 up to but not including 5.4.50, 6.4.29, and 7.3.7, the Request class improperly interprets some PATH_INFO values, resulting in URL paths that do not start with a '/'. This behavior can be exploited to bypass access control rules that assume URL paths always start with a '/'. The issue has been fixed in versions 5.4.50, 6.4.29, and 7.3.7 by ensuring URL paths always start with a '/'.


How can this vulnerability impact me? :

This vulnerability can allow an attacker to bypass access control rules that rely on the assumption that URL paths start with a '/'. By exploiting this, unauthorized users might gain access to restricted resources or perform actions they should not be allowed to, potentially leading to information disclosure, data modification, or service disruption.


What immediate steps should I take to mitigate this vulnerability?

Upgrade the Symfony HttpFoundation component to version 5.4.50, 6.4.29, 7.3.7 or later, where the Request class ensures URL paths always start with a '/'. This prevents the improper interpretation of PATH_INFO and mitigates the vulnerability.


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