CVE-2025-64500: Symfony's incorrect parsing of PATH_INFO can lead to limited authorization bypass

CVE-2025-64500 · Severity: high · CVSS 7.3 · Published 2025-11-12

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 `/`.

Technologies: symfony/http-foundation (Packagist), symfony/symfony (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2025-64500 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-64500 being exploited in the wild.
How severe is CVE-2025-64500?
High severity, with a CVSS score of 7.3, published 12 November 2025.
Which products and versions are affected?
symfony/http-foundation (Packagist) ECOSYSTEM:introduced=0,fixed=5.4.50; symfony/symfony (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=5.4.50.
Is there a fix for CVE-2025-64500?
Yes. symfony/http-foundation (Packagist): upgrade to 5.4.50 or later; symfony/symfony (Packagist): upgrade to 5.4.50 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-64500?
Check whether you run symfony/http-foundation (Packagist), symfony/symfony (Packagist), Sensiolabs Httpfoundation or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • symfony/http-foundation (Packagist): upgrade to 5.4.50 or later
    composer require symfony/http-foundation:^5.4.50
  • symfony/symfony (Packagist): upgrade to 5.4.50 or later
    composer require symfony/symfony:^5.4.50

Affected products

  • symfony/http-foundation (Packagist) ECOSYSTEM:introduced=0,fixed=5.4.50
  • symfony/symfony (Packagist) ECOSYSTEM:introduced=2.0.0,fixed=5.4.50
  • Sensiolabs Httpfoundation
  • Sensiolabs Symfony

Identifiers

  • CVE-2025-64500
  • GHSA-3rg7-wf37-54rm

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