Vulnerability-Lookup

CERTFR-2026-AVI-1460

Vulnerability from certfr_avis - Published: 2026-11-04 - Updated: 2026-11-04

De multiples vulnérabilités ont été découvertes dans les produits Symfony. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Symfony	http-foundation	http-foundation versions 7.x antérieures à 7.4.23
Symfony	routing	routing versions 8.x antérieures à 8.1.11
Symfony	Symfony	symfony versions antérieures à 5.4.56
Symfony	security-http	security-http versions 7.x antérieures à 7.4.23
Symfony	yaml	yaml versions 6.x antérieures à 6.4.50
Symfony	yaml	yaml versions antérieures à 5.4.56
Symfony	http-foundation	http-foundation versions antérieures à 5.4.56
Symfony	routing	routing versions 6.x antérieures à 6.4.50
Symfony	filesystem	filesystem versions 8.x antérieures à 8.1.11
Symfony	routing	routing versions antérieures à 5.4.56
Symfony	http-foundation	http-foundation versions 6.x antérieures à 6.4.50
Symfony	yaml	yaml versions 7.x antérieures à 7.4.23
Symfony	Symfony	symfony versions 6.x antérieures à 6.4.50
Symfony	serializer	serializer versions 8.x antérieures à 8.1.11
Symfony	http-client	http-client versions 6.x antérieures à 6.4.50
Symfony	http-client	http-client versions antérieures à 5.4.56
Symfony	security-http	security-http versions 8.x antérieures à 8.1.11
Symfony	routing	routing versions 7.x antérieures à 7.4.23
Symfony	filesystem	filesystem versions 6.x antérieures à 6.4.50
Symfony	serializer	serializer versions antérieures à 5.4.56
Symfony	Symfony	symfony versions 7.x antérieures à 7.4.23
Symfony	serializer	serializer versions 7.x antérieures à 7.4.23
Symfony	filesystem	filesystem versions 7.x antérieures à 7.4.23
Symfony	security-http	security-http versions 6.x antérieures à 6.4.50
Symfony	Symfony	symfony versions 8.x antérieures à 8.1.11
Symfony	security-http	security-http versions antérieures à 5.4.56
Symfony	json-path	json-path versions 7.3.0 à 7.4.x antérieures à 7.4.23
Symfony	filesystem	filesystem versions antérieures à 5.4.56
Symfony	serializer	serializer versions 6.x antérieures à 6.4.50
Symfony	json-path	json-path versions 8.x antérieures à 8.1.11
Symfony	yaml	yaml versions 8.x antérieures à 8.1.11
Symfony	http-client	http-client versions 7.x antérieures à 7.4.23
Symfony	http-client	http-client versions 8.x antérieures à 8.1.11
Symfony	http-foundation	http-foundation versions 8.x antérieures à 8.1.11

References

Title

Publication Time

Tags

Bulletin de sécurité Symfony GHSA-5mx8-mwrp-5693	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-8f57-m8wj-x65w	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-cpww-5vpx-72x7	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-hwfg-qwvh-2wfx	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-pxj9-jh84-vhm5	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-c7hm-wqwp-f9v8	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-6prc-h956-hxjq	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-xqw3-x93m-887x	2026-11-04	vendor-advisory
Bulletin de sécurité Symfony GHSA-3h27-hjv7-fqjx	2026-11-04	vendor-advisory

Show details on source website

JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "http-foundation versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "http-foundation",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "routing versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "routing",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "symfony versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "Symfony",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "security-http versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "security-http",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "yaml versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "yaml",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "yaml versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "yaml",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-foundation versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "http-foundation",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "routing versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "routing",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "filesystem versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "filesystem",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "routing versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "routing",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-foundation versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "http-foundation",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "yaml versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "yaml",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "symfony versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "Symfony",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "serializer versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "serializer",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-client versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "http-client",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-client versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "http-client",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "security-http versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "security-http",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "routing versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "routing",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "filesystem versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "filesystem",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "serializer versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "serializer",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "symfony versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "Symfony",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "serializer versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "serializer",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "filesystem versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "filesystem",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "security-http versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "security-http",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "symfony versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "Symfony",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "security-http versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "security-http",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "json-path versions 7.3.0 \u00e0 7.4.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "json-path",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "filesystem versions ant\u00e9rieures \u00e0 5.4.56",
      "product": {
        "name": "filesystem",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "serializer versions 6.x ant\u00e9rieures \u00e0 6.4.50",
      "product": {
        "name": "serializer",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "json-path versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "json-path",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "yaml versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "yaml",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-client versions 7.x ant\u00e9rieures \u00e0 7.4.23",
      "product": {
        "name": "http-client",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-client versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "http-client",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    },
    {
      "description": "http-foundation versions 8.x ant\u00e9rieures \u00e0 8.1.11",
      "product": {
        "name": "http-foundation",
        "vendor": {
          "name": "Symfony",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-118516",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-118516"
    }
  ],
  "initial_release_date": "2026-11-04T00:00:00",
  "last_revision_date": "2026-11-04T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1460",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-11-04T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Symfony. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Symfony",
  "vendor_advisories": [
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-5mx8-mwrp-5693",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-5mx8-mwrp-5693"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-8f57-m8wj-x65w",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-8f57-m8wj-x65w"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-cpww-5vpx-72x7",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-cpww-5vpx-72x7"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-hwfg-qwvh-2wfx",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-hwfg-qwvh-2wfx"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-pxj9-jh84-vhm5",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-pxj9-jh84-vhm5"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-c7hm-wqwp-f9v8",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-c7hm-wqwp-f9v8"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-6prc-h956-hxjq",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-6prc-h956-hxjq"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-xqw3-x93m-887x",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-xqw3-x93m-887x"
    },
    {
      "published_at": "2026-11-04",
      "title": "Bulletin de s\u00e9curit\u00e9 Symfony GHSA-3h27-hjv7-fqjx",
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-3h27-hjv7-fqjx"
    }
  ]
}

CVE-2026-118516 (GCVE-0-2026-118516)

Vulnerability from cvelistv5 – Published: 2026-11-04 12:33 – Updated: 2026-11-09 21:13

Title

Symfony: Host Placeholders Can Match the Start of the Path in Compiled URL Matchers, Bypassing Path-Based Access Control

Summary

The Symfony Routing components CompiledUrlMatcher and UrlMatcher interpret the host and path information differently, allowing path-based authorization rules to be bypassed in Symfony versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11. For routes that define a host, CompiledUrlMatcher matches the string $host.'.'.$pathinfo against the host regular expression followed by the path regular expression, while UrlMatcher matches the host and the path separately. A host placeholder can therefore match /, and consume the beginning of the path, so the request is routed to a controller, while UrlMatcher would find no route. Rules that look at the path, such as access_control entries and firewall patterns, are evaluated against the actual request path, so they do not apply while the controller of the route runs, potentially allowing an unauthenticated request to reach a protected controller. For example, with the route /admin/report/{id}, the host app.{domain} and the rule access_control: [{ path: ^/admin, roles: ROLE_ADMIN }], an anonymous request for /admin/report/1 is sent to the login page. A request with the Host header app and path /x./admin/report/1 instead reaches the controller, with domain="/x". With the required domain: .+, the real hostname works: app.example.com and /x./admin/report/1 match with domain="example.com./x". Applications are affected if they have routes with host placeholders protected by path-based rules. With the default requirement, the Host header must be the host of the route without its last labels, such as app: framework.trusted_hosts blocks that, while a web server that only serves known names may not, for instance, Nginx passing the raw Host header to FastCGI for a request line that carries an absolute URI. If the requirement accepts /, such as .+, a real hostname works, and trusted_hosts does not help.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-09 21:12 UTC

CWE

CWE-436 - Interpretation Conflict
CWE-863 - Incorrect Authorization

Assigner

Checkmarx CNA under the mitre root

CNA scorecard B 88/100 over 23 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/symfony/symfony/security/advis…	third-party-advisory
https://github.com/symfony/symfony/commit/067cde5…	patch

Impacted products

1 product

Vendor	Product	Version
sensiolabs	symfony	Affected: 0 , < 5.4.56 (git) Affected: 6.0.0 , < 6.4.50 (git) Affected: 7.0.0 , < 7.4.23 (git) Affected: 8.0.0 , < 8.1.11 (git) cpe:2.3:a:sensiolabs:symfony:::::::: cpe:2.3:a:sensiolabs:symfony:::::::: cpe:2.3:a:sensiolabs:symfony:::::::: cpe:2.3:a:sensiolabs:symfony::::::::

Date Public

2026-11-04 12:32

Credits

Vincent Cassiau (CyberVanguard) Nicolas Grekas

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-118516",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-09T21:12:52.419903Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-09T21:13:06.710Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "collectionURL": "https://packagist.org/packages/symfony/routing",
          "defaultStatus": "unaffected",
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          ],
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          "repo": "https://github.com/symfony/routing",
          "vendor": "sensiolabs",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "6.0.0",
              "versionType": "git"
            },
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              "version": "7.0.0",
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            },
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              "status": "affected",
              "version": "8.0.0",
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            }
          ]
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                  "vulnerable": true
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                  "versionEndExcluding": "7.4.23",
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                },
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                  "versionStartIncluding": "8.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Vincent Cassiau (CyberVanguard)"
        },
        {
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          "type": "remediation developer",
          "value": "Nicolas Grekas"
        }
      ],
      "datePublic": "2026-11-04T12:32:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003eThe Symfony Routing components\u0026nbsp;\u003ccode\u003eCompiledUrlMatcher\u003c/code\u003e and \u003ccode\u003eUrlMatcher\u0026nbsp;\u003c/code\u003e\u003cspan\u003einterpret the host and path information differently, allowing\u0026nbsp;\u003c/span\u003epath-based authorization rules to be bypassed in Symfony versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11.\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eFor routes that define a host,\u0026nbsp;\u003ccode\u003eCompiledUrlMatcher\u003c/code\u003e\u0026nbsp;matches the string\u0026nbsp;\u003ccode\u003e$host.\u0027.\u0027.$pathinfo\u0026nbsp;\u003c/code\u003eagainst the host regular expression followed by the path regular expression, while\u0026nbsp;\u003ccode\u003eUrlMatcher\u003c/code\u003e\u0026nbsp;matches the host and the path separately. A\u003cspan\u003e\u0026nbsp;host placeholder can therefore\u0026nbsp; match\u0026nbsp;\u003c/span\u003e\u003ccode\u003e/\u003c/code\u003e\u003cspan\u003e,\u0026nbsp;\u003c/span\u003eand consume the beginning of the path\u003cspan\u003e, so the request is routed to a controller, while\u0026nbsp;\u003c/span\u003e\u003ccode\u003eUrlMatcher\u003c/code\u003e\u003cspan\u003e\u0026nbsp; would find no route.\u0026nbsp;\u003c/span\u003e\u003cspan\u003eRules that look at the path, such as\u0026nbsp;\u003c/span\u003e\u003ccode\u003eaccess_control\u003c/code\u003e\u003cspan\u003e\u0026nbsp;entries and firewall patterns,\u0026nbsp;\u003c/span\u003eare evaluated against the actual request path\u003cspan\u003e, so they do not apply while the controller of the route runs,\u0026nbsp;\u003c/span\u003epotentially allowing an unauthenticated request to reach a protected controller. For example, w\u003cspan\u003eith the route\u0026nbsp;\u003c/span\u003e\u003ccode\u003e/admin/report/{id}\u003c/code\u003e\u003cspan\u003e, the host\u0026nbsp;\u003c/span\u003e\u003ccode\u003eapp.{domain}\u003c/code\u003e\u003cspan\u003e\u0026nbsp;and the rule\u0026nbsp;\u003c/span\u003e\u003ccode\u003eaccess_control:\u0026nbsp;[{ path: ^/admin, roles: ROLE_ADMIN }]\u003c/code\u003e\u003cspan\u003e, an anonymous request for\u0026nbsp;\u003c/span\u003e\u003ccode\u003e/admin/report/1\u003c/code\u003e\u003cspan\u003e\u0026nbsp;is sent to the login page. A request with the Host header\u0026nbsp;\u003c/span\u003e\u003ccode\u003eapp\u003c/code\u003e\u003cspan\u003e\u0026nbsp;and path\u0026nbsp;\u003c/span\u003e\u003ccode\u003e/x./admin/report/1\u003c/code\u003e\u003cspan\u003e\u0026nbsp;instead reaches the controller, with\u0026nbsp;\u003c/span\u003e\u003ccode\u003edomain=\"/x\"\u003c/code\u003e\u003cspan\u003e. With the required\u0026nbsp;\u003c/span\u003e\u003ccode\u003edomain: .+\u003c/code\u003e\u003cspan\u003e, the real hostname works:\u0026nbsp;\u003c/span\u003e\u003ccode\u003eapp.example.com\u003c/code\u003e\u003cspan\u003e\u0026nbsp;and\u0026nbsp;\u003c/span\u003e\u003ccode\u003e/x./admin/report/1\u0026nbsp;\u003c/code\u003e\u003cspan\u003ematch with\u0026nbsp;\u003c/span\u003e\u003ccode\u003edomain=\"example.com./x\"\u003c/code\u003e\u003cspan\u003e.\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan\u003eApplications are affected if they have routes with host placeholders protected by path-based rules. With the default requirement, the Host header must be the host of the route without its last labels, such as\u0026nbsp;\u003c/span\u003e\u003ccode\u003eapp: framework.trusted_hosts\u003c/code\u003e\u003cspan\u003e\u0026nbsp;blocks that, while a web server that only serves known names may not, for instance, Nginx passing the raw Host header to FastCGI for a request line that carries an absolute URI. If the requirement accepts /, such as .+, a real hostname works, and\u0026nbsp;\u003c/span\u003e\u003ccode\u003etrusted_hosts\u003c/code\u003e\u003cspan\u003e\u0026nbsp;does not help.\u003c/span\u003e\u003c/div\u003e"
            }
          ],
          "value": "The Symfony Routing components\u00a0CompiledUrlMatcher and UrlMatcher\u00a0interpret the host and path information differently, allowing\u00a0path-based authorization rules to be bypassed in Symfony versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11.\n\n\n\n\nFor routes that define a host,\u00a0CompiledUrlMatcher\u00a0matches the string\u00a0$host.\u0027.\u0027.$pathinfo\u00a0against the host regular expression followed by the path regular expression, while\u00a0UrlMatcher\u00a0matches the host and the path separately. A\u00a0host placeholder can therefore\u00a0 match\u00a0/,\u00a0and consume the beginning of the path, so the request is routed to a controller, while\u00a0UrlMatcher\u00a0 would find no route.\u00a0Rules that look at the path, such as\u00a0access_control\u00a0entries and firewall patterns,\u00a0are evaluated against the actual request path, so they do not apply while the controller of the route runs,\u00a0potentially allowing an unauthenticated request to reach a protected controller. For example, with the route\u00a0/admin/report/{id}, the host\u00a0app.{domain}\u00a0and the rule\u00a0access_control:\u00a0[{ path: ^/admin, roles: ROLE_ADMIN }], an anonymous request for\u00a0/admin/report/1\u00a0is sent to the login page. A request with the Host header\u00a0app\u00a0and path\u00a0/x./admin/report/1\u00a0instead reaches the controller, with\u00a0domain=\"/x\". With the required\u00a0domain: .+, the real hostname works:\u00a0app.example.com\u00a0and\u00a0/x./admin/report/1\u00a0match with\u00a0domain=\"example.com./x\".\n\n\n\n\nApplications are affected if they have routes with host placeholders protected by path-based rules. With the default requirement, the Host header must be the host of the route without its last labels, such as\u00a0app: framework.trusted_hosts\u00a0blocks that, while a web server that only serves known names may not, for instance, Nginx passing the raw Host header to FastCGI for a request line that carries an absolute URI. If the requirement accepts /, such as .+, a real hostname works, and\u00a0trusted_hosts\u00a0does not help."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436 Interpretation Conflict",
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              "type": "CWE"
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        },
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-04T18:10:27.489Z",
        "orgId": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
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      "references": [
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          "tags": [
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          "url": "https://github.com/symfony/symfony/security/advisories/GHSA-xqw3-x93m-887x"
        },
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          "url": "https://github.com/symfony/symfony/commit/067cde51e29f6d605de4de53322a02c6e23b5416"
        }
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      "source": {
        "advisory": "GHSA-xqw3-x93m-887x",
        "discovery": "UNKNOWN"
      },
      "title": "Symfony: Host Placeholders Can Match the Start of the Path in Compiled URL Matchers, Bypassing Path-Based Access Control",
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  "cveMetadata": {
    "assignerOrgId": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
    "assignerShortName": "Checkmarx",
    "cveId": "CVE-2026-118516",
    "datePublished": "2026-11-04T12:33:08.482Z",
    "dateReserved": "2026-10-28T14:33:36.992Z",
    "dateUpdated": "2026-11-09T21:13:06.710Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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