Incomplete Cleanup

Overview @fastify/multipart is a Multipart plugin for Fastify Affected versions of this package are vulnerable to Incomplete Cleanup due to incomplete temporary-file handling in saveRequestFiles in index.js. An attacker can exhaust disk space by sending a multipart request that completes one file...

@appweaver/core (>=1.0.8, <=1.6.1), @buildplease/apikit (>=1.0.0, <=1.0.1) +16 more potentially affected by CVE-2026-19474 via @fastify/multipart (>=10.0.0, <=10.1.0)

@fastify/multipart NPM version =10.0.0, =1.0.8, =1.0.0, =4.0.1, =5.3.0, =0.0.17, =2.5.0, =2.2.1, =20260128.2248.28, =20260411.1248.30, =20260828.1636.54, =1.0.1, =0.11.0, =0.0.0-unstable.9f53ea597d, =6.5.0-beta.4 and more Source cves: CVE-2026-19474 Source advisory: SNYK:JS-FASTIFYMULTIPART-18853...

@appweaver/core (>=1.0.8, <=1.6.1), @buildplease/apikit (>=1.0.0, <=1.0.1) +16 more potentially affected by CVE-2026-18549 via @fastify/multipart (>=10.0.0, <=10.1.0)

@fastify/multipart NPM version =10.0.0, =1.0.8, =1.0.0, =4.0.1, =5.3.0, =0.0.17, =2.5.0, =2.2.1, =20260128.2248.28, =20260411.1248.30, =20260828.1636.54, =1.0.1, =0.11.0, =0.0.0-unstable.9f53ea597d, =6.5.0-beta.4 and more Source cves: CVE-2026-18549 Source advisory: SNYK:JS-FASTIFYMULTIPART-18853...

Incomplete Cleanup

Overview @fastify/multipart is a Multipart plugin for Fastify Affected versions of this package are vulnerable to Incomplete Cleanup due to the saveRequestFiles multipart upload handling in index.js. An attacker can hang a request and leave temporary files behind by sending a file part that excee...

CVE-2026-18549

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-19474

@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...

EUVD-2026-59761

@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...

CVE-2026-19474

The CVE-2026-19474 entry concerns @fastify/multipart, affecting versions 3.0.0 up to but not including 10.1.1. The root cause is that request.saveRequestFiles() can leave completed temporary files on disk when a client disconnects while the parser is advancing between multipart parts; the iterato...

CVE-2026-19474 @fastify/multipart vulnerable to Denial of Service via temporary file leak on aborted upload

@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...

CVE-2026-19474

@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...

CVE-2026-19474 @fastify/multipart vulnerable to Denial of Service via temporary file leak on aborted upload

@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...

CVE-2026-19474 @fastify/multipart vulnerable to Denial of Service via temporary file leak on aborted upload

@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...

EUVD-2026-59759

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549 @fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549

The CVE-2026-18549 issue affects @fastify/multipart versions 5.3.0 through 10.1.0. When the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the stream remains open. If the client aborts before the terminating boundary is sent, abort cleanup...

CVE-2026-18549 @fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-18549 @fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit

@fastify/multipart is a multipart form-data parser for Fastify. In versions from 5.3.0 up to but not including 10.1.1, when the busboy fileSize limit truncates a file part, the plugin clears its internal current-file reference while the underlying stream is still open. If the client then aborts t...

CVE-2026-19474: Incomplete Cleanup

@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...

PT-2026-73034

Name of the Vulnerable Software and Affected Versions @fastify/multipart versions 3.0.0 through 10.1.0 Description An issue exists in the multipart form-data parser where the saveRequestFiles function can leave temporary files on the disk if a client disconnects while the parser is moving between...