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CVE-2026-19481 @fastify/busboy vulnerable to Denial of Service via prototype-named multipart part header

🗓️ 13 Aug 2026 08:31:25Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 57 Views

@fastify/busboy 1.0.0-3.2.0 DoS via __proto__ header name causing synchronous TypeError and process termination.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-19481
13 Aug 202608:31
–attackerkb
cgr
Chainguard
CVE-2026-19481 vulnerabilities
5 Oct 202621:01
–cgr
circl
Circl
CVE-2026-19481
13 Aug 202608:39
–circl
cve
CVE
CVE-2026-19481
13 Aug 202608:31
–cve
euvd
EUVD
EUVD-2026-57757
2 Oct 202623:16
–euvd
github
Github Security Blog
@fastify/busboy vulnerable to Denial of Service via prototype-named multipart part header
2 Oct 202623:16
–github
mend
Mend
CVE-2026-19481
13 Aug 202608:31
–mend
nvd
NVD
CVE-2026-19481
13 Aug 202609:17
–nvd
osv
OSV
CGA-26QR-F38R-5PP6
3 Oct 202612:13
–osv
osv
OSV
CGA-2J66-RR8H-38HR
3 Oct 202614:22
–osv
Rows per page
[
  {
    "vendor": "@fastify/busboy",
    "product": "@fastify/busboy",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "1.0.0",
        "lessThan": "3.2.1"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "3.2.1"
      }
    ],
    "packageURL": "pkg:npm/@fastify/busboy"
  }
]

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