High

node-opcua DoS when bypassing limitations for excessive memory consumption

  • Disclosed: 25.08.2022
  • Updated: 11.10.2026 10:22

The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package node-opcua < 2.74.0 2.74.0

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-400
Platform
npm
Package
node-opcua
Disclosed
25.08.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-vh4f-fgpp-x8x2 - CC BY 4.0

Vulnerability history: node-opcua

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
6
First → latest
08.2022 09.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • High 6

Disclosures per year

  1. 2022: 3
  2. 2023: 0
  3. 2024: 0
  4. 2025: 0
  5. 2026: 3
  1. node-opcua DoS when bypassing limitations for excessive memory consumption this entry
    High · 7.5 CVE-2022-24375 < 2.74.0 2.74.0
  2. High · 7.5 CVE-2022-21208 < 2.74.0 2.74.0

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Free to subscribe. Unsubscribe with one click in any email.