Detections
Analytics

SCA: security update for undici (GHSA-qq8j-7v2v-3rwp)

high Tenable Self-Hosted Container Security Plugin ID 477605

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - undici is an HTTP client library for Node.js. In versions 8.11.0 and 8.11.1, its experimental WebSocket
 client, which is enabled by default when HTTP/2 is allowed, mishandles a failed WebSocket handshake over
 HTTP/2: the request is already marked completed, so the abort becomes a no-op and the underlying HTTP/2
 stream is left open with no error listener. When a malicious server then destroys the connection, the
 orphaned stream emits an unhandled error and the Node.js process exits. A remote, unauthenticated server
 can therefore crash any client that opens a WebSocket to it over HTTP/2, resulting in a denial of service.
 The issue is fixed in undici 8.11.2, and users should upgrade to 8.11.2 or later. As a workaround, set
 allowH2 to false to disable HTTP/2 for WebSocket connections, or avoid opening WebSocket connections to
 untrusted servers. (CVE-2026-109855)

Solution

Update the undici library and its related packages to version 8.11.2 or later.

See Also

https://github.com/advisories/GHSA-qq8j-7v2v-3rwp

Plugin Details

Severity: High

ID: 477605

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/27/2026

Updated: 10/27/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.02

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-109855

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 10/15/2026

Reference Information

CVE: CVE-2026-109855