# node-opcua (npm) vulnerabilities Source: https://junglewise.ai/threats/technologies/node-opcua Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/node-opcua.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 7 vulnerabilities in node-opcua (npm): 0 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-95860, was published on 3 November 2026. 1 vulnerability in the last four weeks, down 67% on the four before (3). 1 critical against 0. ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 4 - All time: 7 (1 critical, 0 exploited in the wild) ## About node-opcua (npm) Node.js library implementing the OPC Unified Architecture protocol for industrial automation and IoT communication. ## Latest node-opcua (npm) vulnerabilities - [CVE-2026-95860: node-opcua namespace-level access control bypass](https://junglewise.ai/threats/cve-2026-95860-node-opcua-is-an-opc-ua-implementation-for-typescript-and-node-js) (critical, CVSS 9.1, published 3 Nov 2026) - [CVE-2026-68904: node-opcua TCP socket leak in keepalive reconnection](https://junglewise.ai/threats/cve-2026-68904-node-opcua-tcp-socket-leak-in-keepalive-reconnection) (high, CVSS 7, published 16 Sep 2026) - [CVE-2026-54156: node-opcua unbounded nonce cache heap exhaustion](https://junglewise.ai/threats/cve-2026-54156-node-opcua-unbounded-nonce-cache-heap-exhaustion) (high, CVSS 7.5, published 14 Sep 2026) - [CVE-2026-54155: node-opcua missing nonce verification in UserNameIdentityToken authentication](https://junglewise.ai/threats/cve-2026-54155-node-opcua-missing-nonce-verification-in-usernameidentitytoken) (high, CVSS 7.7, published 14 Sep 2026) - [CVE-2022-24375: node-opcua denial of service via excessive CloseSession requests](https://junglewise.ai/threats/cve-2022-24375-node-opcua-denial-of-service-via-excessive-closesession-requests) (low, CVSS 3.1, published 25 Aug 2022) - [CVE-2022-21208: node-opcua denial of service via message chunks](https://junglewise.ai/threats/cve-2022-21208-node-opcua-denial-of-service-via-message-chunks) (low, CVSS 3.1, published 24 Aug 2022) - [CVE-2022-25231: node-opcua denial of service via excessive memory allocation](https://junglewise.ai/threats/cve-2022-25231-node-opcua-denial-of-service-via-excessive-memory-allocation) (low, CVSS 3.1, published 24 Aug 2022) ## Most severe node-opcua (npm) vulnerabilities - [CVE-2026-95860: node-opcua namespace-level access control bypass](https://junglewise.ai/threats/cve-2026-95860-node-opcua-is-an-opc-ua-implementation-for-typescript-and-node-js) (critical, CVSS 9.1, published 3 Nov 2026) - [CVE-2026-54155: node-opcua missing nonce verification in UserNameIdentityToken authentication](https://junglewise.ai/threats/cve-2026-54155-node-opcua-missing-nonce-verification-in-usernameidentitytoken) (high, CVSS 7.7, published 14 Sep 2026) - [CVE-2026-54156: node-opcua unbounded nonce cache heap exhaustion](https://junglewise.ai/threats/cve-2026-54156-node-opcua-unbounded-nonce-cache-heap-exhaustion) (high, CVSS 7.5, published 14 Sep 2026) - [CVE-2026-68904: node-opcua TCP socket leak in keepalive reconnection](https://junglewise.ai/threats/cve-2026-68904-node-opcua-tcp-socket-leak-in-keepalive-reconnection) (high, CVSS 7, published 16 Sep 2026) - [CVE-2022-24375: node-opcua denial of service via excessive CloseSession requests](https://junglewise.ai/threats/cve-2022-24375-node-opcua-denial-of-service-via-excessive-closesession-requests) (low, CVSS 3.1, published 25 Aug 2022) - [CVE-2022-21208: node-opcua denial of service via message chunks](https://junglewise.ai/threats/cve-2022-21208-node-opcua-denial-of-service-via-message-chunks) (low, CVSS 3.1, published 24 Aug 2022) - [CVE-2022-25231: node-opcua denial of service via excessive memory allocation](https://junglewise.ai/threats/cve-2022-25231-node-opcua-denial-of-service-via-excessive-memory-allocation) (low, CVSS 3.1, published 24 Aug 2022) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 67% on the four before (3). 1 critical against 0. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 3 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 1 | 1 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other npm technologies - [openclaw (npm)](https://junglewise.ai/threats/technologies/npm-openclaw): 214 vulnerabilities - [flowise (npm)](https://junglewise.ai/threats/technologies/flowise): 133 vulnerabilities - [parse-server (npm)](https://junglewise.ai/threats/technologies/parse-server): 117 vulnerabilities - [vm2 (npm)](https://junglewise.ai/threats/technologies/vm2): 111 vulnerabilities - [electron (npm)](https://junglewise.ai/threats/technologies/electron): 77 vulnerabilities - [ghost (npm)](https://junglewise.ai/threats/technologies/ghost): 74 vulnerabilities - [n8n (npm)](https://junglewise.ai/threats/technologies/npm-n8n): 64 vulnerabilities - [hono (npm)](https://junglewise.ai/threats/technologies/hono): 62 vulnerabilities - [directus (npm)](https://junglewise.ai/threats/technologies/directus): 61 vulnerabilities - [nocodb (npm)](https://junglewise.ai/threats/technologies/nocodb): 54 vulnerabilities - [undici (npm)](https://junglewise.ai/threats/technologies/undici): 53 vulnerabilities - [@budibase/server (npm)](https://junglewise.ai/threats/technologies/budibase-server): 42 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "node-opcua (npm) vulnerabilities", https://junglewise.ai/threats/technologies/node-opcua, 13 November 2026.