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CVE-2025-64500

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

Published: Nov 12, 2025Updated: Jan 12, 2026 Sources: CVE List NVD GHSA BDUCWE-647
NVD MITRE
7.3CVSSHIGH
EPSS Score
1.3%
Top 33.4%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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 Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-647

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
SymfonySensioLabs, symfony community
Library
OSS Libraries / web-framework
symfonysymfony
Library
OSS Libraries / web-framework
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
sensiolabs, symfony communityoss-projectFROSS Librariesaka symfony, twig
symfonyoss-projectOSS Librariesaka symfony framework, twig (related)
and 4 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass
symfony.com
http://repo.red-soft.ru/redos/8.0/x86_64/updates/
repo.red-soft.ru
https://security-tracker.debian.org/tracker/CVE-2025-64500
security-tracker.debian.org
and 11 more references View all →

Timeline

Published
Nov 12, 2025
Last Updated
Jan 12, 2026

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