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CVE-2026-22037 @fastify/express vulnerable to Improper Handling of URL Encoding (Hex Encoding)

🗓️ 19 Jan 2026 16:48:10Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 20 Views

Vulnerability in fastify/express prior to 4.0.3 lets bypass middleware via URL encoded path.

Related
Affected
Refs
[
  {
    "vendor": "fastify",
    "product": "fastify-express",
    "versions": [
      {
        "version": "< 4.0.3",
        "status": "affected"
      }
    ]
  }
]

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19 Jan 2026 16:48Current
CVSS 3.18.4
EPSS0.00321
20