fastify\/busyboy vulnerabilities and fixes

Recent CVEs affecting fastify\/busyboy, with upgrade or downgrade steps. 3 tracked.

fastify\/busyboy has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-08-21. Highest priority: CVE-2026-19484 (score 44/100).

• CVE-2026-74866 MEDIUM 5.8 UPGRADE @fastify/busboy is a multipart form-data parser for Node.js
• CVE-2026-19481 HIGH 7.5 UPGRADE @fastify/busboy is a multipart form-data parser
• CVE-2026-19484 HIGH 7.5 UPGRADE @fastify/busboy is a multipart form-data parser

FAQ

How do I fix fastify\/busyboy vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is fastify\/busyboy being exploited right now?

None of the tracked fastify\/busyboy CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which fastify\/busyboy CVE should I patch first?

CVE-2026-19484 currently ranks highest (44/100): @fastify/busboy is a multipart form-data parser.

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