@fastify/busboy is a multipart form-data parser for Node.js. Its multipart part-header parser splits header lines only on the two-byte carriage-return line-feed sequence, so a lone carriage return or line feed embedded in a part header is not treated as a line break and is carrie...
Product
fastify @fastify/busboy vulnerabilities
3 published CVES affecting fastify @fastify/busboy, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 3
- Critical
- 0
- High
- 2
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest fastify @fastify/busboy CVEs
Newest publication first
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MediumCVSS 5.8 EPSS 0.33%
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CVE-2026-19484 @fastify/busboy vulnerable to Denial of Service via oversized multipart boundary
PublishedHighCVSS 7.5 EPSS 0.62%@fastify/busboy is a multipart form-data parser. In versions 3.1.0 through 3.2.0, a remote unauthenticated attacker can stall the Node.js event loop by sending a multipart request whose boundary is crafted to a specific length. The vendored streaming search stores its skip table...
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HighCVSS 7.5 EPSS 0.49%
@fastify/busboy is a multipart form-data parser. In versions 1.0.0 through 3.2.0, an attacker who can submit multipart form-data can crash the parser by sending a part header whose name is a prototype-inherited property such as proto or constructor. The internal header parser sto...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.