CVE-2026-19474

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Source
https://cve.org/CVERecord?id=CVE-2026-19474
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19474.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-19474
Aliases
  • GHSA-62qx-hpj5-j6hc
Published
2026-08-15T13:36:13Z
Modified
2026-09-04T03:46:21Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
@fastify/multipart vulnerable to Denial of Service via temporary file leak on aborted upload
Details

@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.

Database specific 
{
    "cna_assigner": "openjs",
    "cwe_ids": [
        "CWE-459",
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19474.json"
}
References

Affected packages

Git / github.com/fastify/fastify-multipart

Affected ranges

Type
GIT
Repo
https://github.com/fastify/fastify-multipart
Events
Introduced
6e306074c496ab8f8be2a77c96925ecef49296f7
Fixed
6c4478afd699f8e8190e60fa8debccc6e7e5ed0c
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:fastify:fastify-multipart:*:*:*:*:*:fastify:*:*",
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "10.1.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

4.*
4.0.7
5.*
5.2.0
v10.*
v10.0.0
v10.1.0
v3.*
v3.0.0
v3.1.0
v3.2.0
v3.2.1
v3.3.0
v3.3.1
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.0.4
v4.0.5
v4.0.6
v5.*
v5.0.0
v5.0.1
v5.0.2
v5.1.0
v5.2.1
v5.3.0
v5.3.1
v6.*
v6.0.0
v7.*
v7.0.0
v7.1.0
v7.1.1
v7.1.2
v7.2.0
v7.3.0
v7.4.0
v7.4.1
v7.4.2
v7.5.0
v7.6.0
v7.6.1
v7.7.0
v7.7.1
v7.7.2
v7.7.3
v8.*
v8.0.0
v8.1.0
v8.2.0
v8.3.0
v9.*
v9.0.0
v9.0.1
v9.0.2
v9.0.3
v9.1.0
v9.2.0
v9.2.1
v9.3.0
v9.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19474.json"