CVE-2026-87908

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Source
https://cve.org/CVERecord?id=CVE-2026-87908
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87908.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-87908
Aliases
  • GHSA-5h46-2939-q3wh
Downstream
Published
2026-09-11T06:37:51Z
Modified
2026-09-13T03:47:18Z
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
multiparty vulnerable to Denial of Service via unbounded part-header accumulation
Details

multiparty is a Node.js library for parsing multipart/form-data request bodies. In versions from 2.1.0 up to but not including 4.3.1, the parser does not bound the amount of memory used while accumulating the headers of a single multipart part. An unauthenticated attacker can send a single request whose part carries a very large volume of header bytes, forcing the parser to buffer all of them and exhausting the process memory, which crashes the server. This is a denial of service with no confidentiality or integrity impact. The issue is fixed in multiparty 4.3.1, which caps the size of the accumulated part headers. Users should upgrade to multiparty 4.3.1 or later.

Database specific 
{
    "cna_assigner": "openjs",
    "cwe_ids": [
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87908.json"
}
References

Affected packages

Git / github.com/pillarjs/multiparty

Affected ranges

Type
GIT
Repo
https://github.com/pillarjs/multiparty
Events
Introduced
2664e8d309520ddea39b3a16ba0a0e6e9838fd89
Fixed
dcec0ec02ba6c2ef1961dcf8e2f25fce94eb1c2d
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.1.0"
        },
        {
            "fixed": "4.3.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

2.*
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.2.0
3.*
3.0.0
3.1.0
3.1.1
3.1.2
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.3.0
3.3.1
3.3.2
4.*
4.0.0
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.2.0
4.2.1
4.2.2
4.2.3
v4.*
v4.3.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87908.json"