Improper Handling of Exceptional Conditions Affecting multiparty package, versions <4.3.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-MULTIPARTY-16787378
- published21 May 2026
- disclosed12 May 2026
- creditByambadalai Sumiya
Introduced: 12 May 2026
NewCVE-2026-8162 (opens in a new tab)How to fix?
Upgrade multiparty to version 4.3.0 or higher.
Overview
multiparty is a multipart/form-data parser which supports streaming
Affected versions of this package are vulnerable to Improper Handling of Exceptional Conditions via the filename* parameter parsing in multipart form-data requests. An attacker can cause the process to crash by sending a request with a malformed percent-encoding in the filename* parameter, which triggers an uncaught exception.