Uncaught Exception Affecting undici package, versions >=7.15.0 <7.30.1>=8.0.0 <8.12.2
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-UNDICI-21181017
- published18 Oct 2026
- disclosed15 Oct 2026
- credithaoxiang Yan
Introduced: 15 Oct 2026
NewCVE-2026-87029 (opens in a new tab)How to fix?
Upgrade undici to version 7.30.1, 8.12.2 or higher.
Overview
undici is an An HTTP/1.1 client, written from scratch for Node.js
Affected versions of this package are vulnerable to Uncaught Exception via the DecompressHandler in lib/interceptor/decompress.js, where an uncaught exception thrown by a downstream handler during onResponseData or onResponseEnd propagates unhandled rather than being converged into a per-request error. An attacker or a misbehaving downstream handler can trigger this condition to crash the request pipeline, causing a denial of service.