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CVE-2026-45065 Symfony: UrlGenerator Route-Requirement Bypass via Unanchored Regex Alternation → Off-Site //host URL Injection

🗓️ 14 Jul 2026 17:43:45Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, UrlGenerator validates route parameters against a pattern built as ^ plus the raw requirement plus $; wi...

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Affected
Refs
[
  {
    "vendor": "symfony",
    "product": "symfony",
    "versions": [
      {
        "version": "< 5.4.52",
        "status": "affected"
      },
      {
        "version": ">= 6.0.0-BETA1, < 6.4.40",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0-BETA1, < 7.4.12",
        "status": "affected"
      },
      {
        "version": ">= 8.0.0-BETA1, < 8.0.12",
        "status": "affected"
      }
    ]
  }
]

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14 Jul 2026 17:43Current
CVSS 42.3
EPSS0.0004
3