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 `/`.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| symfony | symfony | >= 2.0.0, < 5.4.50, >= 6.0.0, < 6.4.29, >= 7.0.0, < 7.3.7 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | symfony | 7.4.0~rc1+dfsg-1 | — |
| Debian 13 | symfony | 6.4.21+dfsg-2+deb13u1 | — |
| Debian 12 | symfony | 5.4.23+dfsg-1+deb12u5 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | symfony | No fix yet | — |
| Ubuntu 26.04 LTS | symfony | No fix yet | — |
| Ubuntu 25.10 | symfony | No fix yet | — |
| Ubuntu 16.04 LTS | symfony | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | symfony | No fix yet | — |
| Ubuntu Pro 22.04 LTS | symfony | No fix yet | — |
| Ubuntu Pro 20.04 LTS | symfony | No fix yet | — |
| Ubuntu Pro 18.04 LTS | symfony | No fix yet | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Symfony HttpFoundation - Access Control Bypass via PATH_INFO http/cves/2025/CVE-2025-64500.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | symfony/http-foundation | < 5.4.50 | 5.4.50 | GHSA-3rg7-wf37-54rm |
| Packagist | symfony/http-foundation | >= 6.0.0, < 6.4.29 | 6.4.29 | GHSA-3rg7-wf37-54rm |
| Packagist | symfony/http-foundation | >= 7.0.0, < 7.3.7 | 7.3.7 | GHSA-3rg7-wf37-54rm |
| Packagist | symfony/symfony | >= 2.0.0, < 5.4.50 | 5.4.50 | GHSA-3rg7-wf37-54rm |
| Packagist | symfony/symfony | >= 6.0.0, < 6.4.29 | 6.4.29 | GHSA-3rg7-wf37-54rm |
| Packagist | symfony/symfony | >= 7.0.0, < 7.3.7 | 7.3.7 | GHSA-3rg7-wf37-54rm |
References
- https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm
- 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://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass