High severity · published Nov 12, 2025
CVE-2025-64500
Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass
7.3
CVSS
1.4%
EPSS
No
On KEV
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 `/`.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SY
symfony · symfony
>= 2.0.0, < 5.4.50; >= 6.0.0, < 6.4.29; >= 7.0.0, < 7.3.7 · source: vendor, NVD
HT
Httpfoundation · Sensiolabs
2.0.0 before 5.4.50; 6.0.0 before 6.4.29; 7.0.0 before 7.3.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64500
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64500
Third Party Advisory
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2025-64500.yaml
Third Party Advisory
https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml
Patch
https://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac
Vendor Advisory
https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm
Third Party Advisory
https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass
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