CVE-2026-88932

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Source

https://cve.org/CVERecord?id=CVE-2026-88932

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88932.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-88932

Aliases

GHSA-3pph-fpjx-jg34

Published

2026-09-14T08:46:12Z

Modified

2026-09-16T03:30:31Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads

Details

multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.

Database specific

{
    "cna_assigner": "openjs",
    "cwe_ids": [
        "CWE-400",
        "CWE-459"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88932.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "2.2.0"
                },
                {
                    "fixed": "2.4.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/expressjs/multer

Affected ranges

Type

GIT

Repo

https://github.com/expressjs/multer

Events

Introduced

2e2af08157c66cbbc76539ccbd8869097a0c8feb

Fixed

4e8edf50dbb5ddec213b6253642cbc08ce0225a7

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "2.2.0"
        },
        {
            "fixed": "2.3.0"
        }
    ],
    "source": "DESCRIPTION"
}

Affected versions

v2.*

v2.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88932.json"