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CVE-2026-3419 Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation

🗓️ 06 Mar 2026 17:50:58Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

Fastify allows malformed Content-Type with trailing garbage to bypass validation. Fixed in 5.8.1.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3419
6 Mar 202617:50
attackerkb
Circl
CVE-2026-3419
6 Mar 202617:35
circl
CNNVD
Fastify 安全漏洞
6 Mar 202600:00
cnnvd
CVE
CVE-2026-3419
6 Mar 202617:50
cve
Github Security Blog
Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
5 Mar 202621:29
github
NVD
CVE-2026-3419
6 Mar 202618:16
nvd
OSV
CVE-2026-3419
6 Mar 202618:16
osv
OSV
GHSA-573F-X89G-HQP9 Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
5 Mar 202621:29
osv
Positive Technologies
PT-2026-23622
5 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-3419
7 Mar 202600:00
redhatcve
Rows per page
[
  {
    "vendor": "fastify",
    "product": "fastify",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "5.7.2",
        "lessThan": "5.8.1"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "5.8.1"
      }
    ],
    "packageURL": "pkg:npm/fastify"
  }
]

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