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GHSA-3RG7-WF37-54RM

Vulnerability from github – Published: 2025-11-12 21:50 – Updated: 2025-11-15 03:13

Summary

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

Details

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.

Severity

7.3 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/http-foundation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.50"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/http-foundation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.4.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/http-foundation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.3.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "5.4.50"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.4.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/symfony"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.3.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64500"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-647"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-12T21:50:37Z",
    "nvd_published_at": "2025-11-12T22:15:50Z",
    "severity": "HIGH"
  },
  "details": "### Description\n\nThe `Request` class improperly interprets some `PATH_INFO` in a way that leads to representing some URLs with a path that doesn\u0027t start with a `/`. This can allow bypassing some access control rules that are built with this `/`-prefix assumption.\n\n### Resolution\n\nThe `Request` class now ensures that URL paths always start with a `/`.\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac) for branch 5.4.\n\n### Credits\n\nWe would like to thank Andrew Atkinson for discovering the issue, Chris Smith for reporting it and Nicolas Grekas for providing the fix.",
  "id": "GHSA-3rg7-wf37-54rm",
  "modified": "2025-11-15T03:13:30Z",
  "published": "2025-11-12T21:50:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-3rg7-wf37-54rm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64500"
    },
    {
      "type": "WEB",
      "url": "https://github.com/symfony/symfony/commit/9962b91b12bb791322fa73836b350836b6db7cac"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2025-64500.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2025-64500.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/symfony/symfony"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Symfony\u0027s incorrect parsing of PATH_INFO can lead to limited authorization bypass"
}

CVE-2025-64500 (GCVE-0-2025-64500)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:40 – Updated: 2025-11-13 16:50

Title

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

Summary

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 `/`.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-13 16:50 UTC

CWE

CWE-647 - Use of Non-Canonical URL Paths for Authorization Decisions

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/symfony/symfony/security/advis…	x_refsource_CONFIRM
https://github.com/symfony/symfony/commit/9962b91…	x_refsource_MISC
https://github.com/FriendsOfPHP/security-advisori…	x_refsource_MISC
https://github.com/FriendsOfPHP/security-advisori…	x_refsource_MISC
https://symfony.com/blog/cve-2025-64500-incorrect…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
symfony	symfony	Affected: >= 2.0.0, < 5.4.50 Affected: >= 6.0.0, < 6.4.29 Affected: >= 7.0.0, < 7.3.7

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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