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CVE-2026-92395 @fastify/proxy-addr vulnerable to IP spoofing via IPv4-mapped IPv6 trust subnet

🗓️ 16 Sep 2026 14:35:05Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

@fastify/proxy-addr is a Fastify plugin that determines a request's client address behind trusted reverse proxies, and it backs Fastify request.ip and request.ips. In versions 3.0.0 through 5.1.0, a trust subnet written in IPv4-mapped IPv6 notatio...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-92395
16 Sep 202614:38
circl
cve
CVE
CVE-2026-92395
16 Sep 202614:35
cve
euvd
EUVD
EUVD-2026-80806
16 Sep 202614:35
euvd
nvd
NVD
CVE-2026-92395
16 Sep 202615:19
nvd
[
  {
    "vendor": "@fastify/proxy-addr",
    "product": "@fastify/proxy-addr",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "3.0.0",
        "lessThan": "5.1.1"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "5.1.1"
      }
    ],
    "packageURL": "pkg:npm/@fastify/proxy-addr"
  }
]

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16 Sep 2026 14:35Current
CVSS 3.19.1
6