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CVE-2026-2880

🗓️ 27 Feb 2026 18:25:37Reported by openjsType 
cve
 cve
🔗 web.nvd.nist.gov👁 15 Views🌐 WEB

Path normalization flaw in fastify middie below 9.2.0 may bypass authentication via scoped middleware.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-2880
27 Feb 202618:25
attackerkb
Circl
CVE-2026-2880
27 Feb 202618:36
circl
CNNVD
@fastify/middie 安全漏洞
27 Feb 202600:00
cnnvd
Cvelist
CVE-2026-2880 @fastify/middie has an improper path normalization vulnerability
27 Feb 202618:25
cvelist
EUVD
EUVD-2026-9049
28 Feb 202602:47
euvd
Github Security Blog
@fastify/middie has Improper Path Normalization when Using Path-Scoped Middleware
28 Feb 202602:47
github
NVD
CVE-2026-2880
27 Feb 202619:16
nvd
OSV
GHSA-8P85-9QPW-FWGW @fastify/middie has Improper Path Normalization when Using Path-Scoped Middleware
28 Feb 202602:47
osv
Positive Technologies
PT-2026-22377
27 Feb 202600:00
ptsecurity
RedhatCVE
CVE-2026-2880
28 Feb 202619:45
redhatcve
Rows per page
NVD
Node
fastifyfastify/middieRange<9.2.0node.js
[
  {
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/@fastify/middie",
    "product": "@fastify/middie",
    "vendor": "@fastify/middie",
    "versions": [
      {
        "lessThan": "9.2.0",
        "status": "affected",
        "version": "0.0.0",
        "versionType": "semver"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
pathpath/secretAuthentication/authorization bypass via path-scoped middleware when router normalization is enabled (e.g., ignoreDuplicateSlashes, useSemicolonDelimiter, trailing-slash behavior) in @fastify/middie < 9.2.0.CWE-20

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17 Jun 2026 10:31Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.1
CVSS 48.2
EPSS0.0039
SSVC
15