Use of Non-Canonical URL Paths for Authorization Decisions Affecting symfony package, versions <7.4.0~rc1+dfsg-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-SYMFONY-13976782
- published14 Nov 2025
- disclosed12 Nov 2025
Introduced: 12 Nov 2025
NewCVE-2025-64500 (opens in a new tab)How to fix?
Upgrade Debian:14 symfony to version 7.4.0~rc1+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream symfony package and not the symfony package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
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 /.
References
- https://security-tracker.debian.org/tracker/CVE-2025-64500
- 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/commit/9962b91b12bb791322fa73836b350836b6db7cac
- https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm
- https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass