CVE-2026-69200
3.7 LOWpublic exploit availablePublished 2026-09-16 · Updated 2026-09-18
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD 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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-1321
Public exploit & PoC references
References
Data: NVD (public domain). Analysis: local $0 model. Defensive use only.