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 field name that collides with an inherited Object.prototype property such as __proto__, constructor, or toString, the parser invokes .push() on the inherited prototype value rather than an array, throwing a TypeError that propagates as an uncaught exception and crashes the process. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: none. Upgrade to multiparty@4.3.0 or higher.
References
| Link | Resource |
|---|---|
| https://cna.openjsf.org/security-advisories.html | Third Party Advisory |
| https://github.com/pillarjs/multiparty/security/advisories/GHSA-qxch-whhj-8956 | Vendor Advisory |
Configurations
History
13 May 2026, 14:43
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://cna.openjsf.org/security-advisories.html - Third Party Advisory | |
| References | () https://github.com/pillarjs/multiparty/security/advisories/GHSA-qxch-whhj-8956 - Vendor Advisory | |
| First Time |
Pillarjs
Pillarjs multiparty |
|
| CPE | cpe:2.3:a:pillarjs:multiparty:*:*:*:*:*:node.js:*:* |
12 May 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-12 10:16
Updated : 2026-05-13 14:43
NVD link : CVE-2026-8161
Mitre link : CVE-2026-8161
CVE.ORG link : CVE-2026-8161
JSON object : View
Products Affected
pillarjs
- multiparty