Node undici: (undici's experimental WebSocketStream client crashes the whole Node.js ...) (CVE-2026-85014)
A vulnerability in the experimental WebSocketStream client of the Node.js undici library can cause the entire Node.js process to crash. This issue does not impact confidentiality or integrity but results in a denial of service due to application crash. The vulnerability has a medium severity score of 5.9 according to CVSS 3.1. No affected versions or patch information are explicitly provided in the available data. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
The Node.js undici library's experimental WebSocketStream client contains a vulnerability that can crash the entire Node.js process when triggered. This results in a denial of service condition without affecting confidentiality or integrity. The CVSS 3.1 base score is 5.9, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and impact limited to availability. No specific affected versions or patches are documented in the provided information.
Potential Impact
The vulnerability causes a denial of service by crashing the Node.js process using the undici WebSocketStream client. There is no impact on data confidentiality or integrity. This could disrupt services relying on Node.js applications using this experimental client.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider avoiding use of the experimental WebSocketStream client in undici or implement application-level process monitoring and restart mechanisms to mitigate service disruption.
Node undici: (undici's experimental WebSocketStream client crashes the whole Node.js ...) (CVE-2026-85014)
Description
A vulnerability in the experimental WebSocketStream client of the Node.js undici library can cause the entire Node.js process to crash. This issue does not impact confidentiality or integrity but results in a denial of service due to application crash. The vulnerability has a medium severity score of 5.9 according to CVSS 3.1. No affected versions or patch information are explicitly provided in the available data. There are no known exploits in the wild at this time.
CVSS v3.1
Score 5.9medium
Affected software
pkg:deb/ubuntu/node-undici?arch=source&distro=noblepkg:deb/ubuntu/node-undici?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Node.js undici library's experimental WebSocketStream client contains a vulnerability that can crash the entire Node.js process when triggered. This results in a denial of service condition without affecting confidentiality or integrity. The CVSS 3.1 base score is 5.9, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and impact limited to availability. No specific affected versions or patches are documented in the provided information.
Potential Impact
The vulnerability causes a denial of service by crashing the Node.js process using the undici WebSocketStream client. There is no impact on data confidentiality or integrity. This could disrupt services relying on Node.js applications using this experimental client.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider avoiding use of the experimental WebSocketStream client in undici or implement application-level process monitoring and restart mechanisms to mitigate service disruption.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-85014
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a9ee1aeacd9273b49e69c05
Added to database: 09/07/2026, 16:09:18 UTC
Last enriched: 09/07/2026, 16:14:37 UTC
Last updated: 09/08/2026, 00:25:56 UTC
Views: 8
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