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CVE

CVE-2025-64500

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

CVE-2025-64500

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

Description

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.

Resolution

The Request class now ensures that URL paths always start with a /.

The patch for this issue is available here for branch 5.4.

Credits

We would like to thank Andrew Atkinson for discovering the issue, Chris Smith for reporting it and Nicolas Grekas for providing the fix.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
C
H
U
-

Related Resources

No items found.

References

https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm, https://nvd.nist.gov/vuln/detail/CVE-2025-64500, https://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac, https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2025-64500.yaml, https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml, https://github.com/symfony/symfony, https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass

Severity

7.3

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.3
EPSS Probability
0.0004%
EPSS Percentile
0.12134%
Introduced Version
0,6.0.0,7.0.0,2.0.0
Fix Available
5.4.50,6.4.29,7.3.7

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