CVE-2026-109869 Affecting prism package, versions <5.16.0-r19


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.34% (28th percentile)

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  • Snyk IDSNYK-WOLFILATEST-PRISM-21751370
  • published27 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-109869  (opens in a new tab)

How to fix?

Upgrade Wolfi prism to version 5.16.0-r19 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream prism package and not the prism package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

undici is an HTTP client library for Node.js. In versions 6.23.0 through 6.29.0, 7.18.0 through 7.30.0, and 8.0.0 through 8.12.1, its fetch() implementation crashes the Node.js process when a malicious server returns a response with more than five content codings and closes the connection before sending the body. undici rejects such responses because of a content-encoding limit, but it created the internal response stream before that check and returned without attaching an error listener or aborting the request, so the early close surfaces a content-length mismatch on the orphaned stream, which Node.js treats as an unhandled error and terminates the process. A remote, unauthenticated server can trigger this with a single response, even when the application correctly catches the fetch() rejection, resulting in a denial of service. The issue is fixed in undici 6.29.1, 7.30.1, and 8.12.2, and users should upgrade to one of those versions or later. There is no workaround.

CVSS Base Scores

version 3.1