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CVE-2026-14198

🗓️ 01 Jul 2026 11:29:20Reported by openjsType 
cve
 cve
🔗 web.nvd.nist.gov👁 98 Views🌐 WEB

CVE-2026-14198: encoded slash in path parameters bypasses authorization in fastify middie.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
fastifyfastify/middieRange9.1.0–9.3.3node.js
[
  {
    "vendor": "@fastify/middie",
    "product": "@fastify/middie",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "9.1.0",
        "lessThan": "9.3.3"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "9.3.3"
      }
    ],
    "packageURL": "pkg:npm/@fastify/middie"
  }
]
ParameterPositionPathDescriptionCWE
<path_parameter>path/<path_parameter>Bypass of middleware (authentication, authorization, rate limiting) on parameterized paths by using an encoded slash (%2F) in the path parameter, causing a mismatch between @fastify/middie's decoding and Fastify's router.CWE-436

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02 Jul 2026 13:50Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.19.1
EPSS0.00517
SSVC
98