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CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

🗓️ 18 Aug 2026 20:30:22Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Fastify 5.8.3 to 5.12.0 numeric trustProxy allows X-Forwarded header spoofing bypassing host and cookie checks.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-16732
18 Aug 202620:30
cve
euvd
EUVD
EUVD-2026-61222
18 Aug 202620:30
euvd
nvd
NVD
CVE-2026-16732
18 Aug 202621:16
nvd
ptsecurity
Positive Technologies
PT-2026-77311
18 Aug 202600:00
ptsecurity
[
  {
    "vendor": "fastify",
    "product": "fastify",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "5.8.3",
        "lessThan": "5.12.1"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "5.12.1"
      }
    ],
    "packageURL": "pkg:npm/fastify"
  }
]

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