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Mon, 17 Aug 2026 20:30:00 +0000
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ssvc
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Mon, 17 Aug 2026 10:45:00 +0000
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| First Time appeared |
Fastify
Fastify fastify-multipart |
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| Vendors & Products |
Fastify
Fastify fastify-multipart |
Sat, 15 Aug 2026 13:45:00 +0000
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| Description | @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 the connection before sending the terminating boundary, the abort cleanup finds no stream to destroy, so saveRequestFiles() never settles, the request handler hangs, and the temporary file already written to disk is never cleaned up. An unauthenticated client can repeat this to permanently leak temporary files and suspended handler executions, leading to disk and event-loop exhaustion. The issue is fixed in @fastify/multipart 10.1.1. Users should upgrade to 10.1.1. | |
| Title | @fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit | |
| Weaknesses | CWE-400 CWE-664 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: openjs
Published:
Updated: 2026-08-17T19:44:01.262Z
Reserved: 2026-07-31T22:18:10.089Z
Link: CVE-2026-18549
Updated: 2026-08-17T19:43:54.762Z
Status : Received
Published: 2026-08-15T14:17:07.590
Modified: 2026-08-17T20:16:41.567
Link: CVE-2026-18549
No data.
OpenCVE Enrichment
Updated: 2026-08-17T10:30:08Z