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CVE-2026-69200

3.7 · LOW

node-opcua is an OPC UA implementation for TypeScript and Node.js.

Published Sep 16, 2026CWE-1321EPSS 0.35%

Overview

CVE-2026-69200 is a low-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

node-opcua is an OPC UA implementation for TypeScript and Node.js. Prior to node-opcua-client 2.145.0, the internal fieldsToJson method in packages/node-opcua-client/source/alarms_and_conditions/client_alarm.ts directly assigns unsanitized field names and allows a __proto__.pollutedKey path to modify Object.prototype. Successful exploitation requires an application to expose attacker-controlled event fields to fieldsToJson and may cause denial of service or application logic corruption. This vulnerability is fixed in 2.145.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/node-opcua/node-opcua/security/advisories/GHSA-cv5q-7543-48q4GitHubgithub.com/node-opcua/node-opcua/security/advisories/GHSA-cv5q-7543-48q4

How CyberStrike helps

Frequently asked questions

What is CVE-2026-69200?

CVE-2026-69200 is a low-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-69200?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-69200?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-69200?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-69200 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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