CVE-2026-19474
highpriority · track · 0EPSS 0.005 · 42 %ileEUUSEPSS · scored 2026-10-28
@fastify/multipart is a multipart form-data parser for Fastify. In versions from 3.0.0 up to but not including 10.1.1, request.saveRequestFiles() can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts. The iterator rejection that occurs between parts falls outside the per-file cleanup path, so an earlier completed file is never removed. An unauthenticated client can repeat this to cause persistent, linear disk consumption, leading to denial of service. This is an incomplete-fix variant of CVE-2025-24033. The issue is fixed in @fastify/multipart 10.1.1. Users should upgrade to 10.1.1.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (6)
External citations — patches, advisories, analysis.
- https://cna.openjsf.org/security-advisories.htmlcnnvd
- https://github.com/fastify/fastify-multipart/security/advisories/GHSA-62qx-hpj5-j6hccnnvd
- https://cna.openjsf.org/security-advisories.htmlenisa_euvd
- https://github.com/fastify/fastify-multipart/security/advisories/GHSA-62qx-hpj5-j6hcenisa_euvd
- https://cna.openjsf.org/security-advisories.htmlThird Party Advisorynvd
- https://github.com/fastify/fastify-multipart/security/advisories/GHSA-62qx-hpj5-j6hcMitigationVendor Advisorynvd
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