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CVE-2026-18174 @fastify/forwarded vulnerable to improper input validation via unstripped tab characters in X-Forwarded-For

🗓️ 29 Jul 2026 13:46:07Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Vulnerability in fastify forwarded before 3.0.2 lets tab-padded X-Forwarded-For evade exact IP checks.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-18174
29 Jul 202613:46
attackerkb
circl
Circl
CVE-2026-18174
29 Jul 202613:53
circl
cve
CVE
CVE-2026-18174
29 Jul 202613:46
cve
euvd
EUVD
EUVD-2026-50332
29 Jul 202613:46
euvd
nvd
NVD
CVE-2026-18174
29 Jul 202614:16
nvd
ptsecurity
Positive Technologies
PT-2026-65795
29 Jul 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-18174 @fastify/forwarded vulnerable to improper input validation via unstripped tab characters in X-Forwarded-For
29 Jul 202613:46
vulnrichment
[
  {
    "vendor": "@fastify/forwarded",
    "product": "@fastify/forwarded",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "0",
        "lessThan": "3.0.2"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "3.0.2"
      }
    ],
    "packageURL": "pkg:npm/@fastify/forwarded"
  }
]

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