GHSA-xh3c-6gcq-g4rv

Source

https://github.com/advisories/GHSA-xh3c-6gcq-g4rv

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-xh3c-6gcq-g4rv/GHSA-xh3c-6gcq-g4rv.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-xh3c-6gcq-g4rv

Aliases

CVE-2026-8162

Published

2026-05-18T17:35:24Z

Modified

2026-05-18T17:45:09Z

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 Uncaught Exception in filename* parameter parsing

Details

Impact

multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a Content-Disposition: filename*=utf-8'' header containing a malformed percent-encoding (e.g., %FF, %GG), the parser invokes decodeURI on the value without try/catch. The resulting URIError propagates as an uncaught exception and crashes the process. Any service accepting multipart uploads via multiparty is affected.

Patches

Users should upgrade to multiparty@4.3.0 or higher.

Workarounds

None.

Database specific

{
    "cwe_ids": [
        "CWE-755"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-18T17:35:24Z",
    "nvd_published_at": "2026-05-12T10:16:49Z",
    "severity": "HIGH"
}

References

Affected packages

npm / multiparty

Package

Name: multiparty; View open source insights on deps.dev
Purl: pkg:npm/multiparty

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

4.3.0

Database specific

last_known_affected_version_range

"<= 4.2.3"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-xh3c-6gcq-g4rv/GHSA-xh3c-6gcq-g4rv.json"