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Not in CISA KEV
HIGH severity

CVE-2024-57086 — node-opcua-alarm-condition

HIGH

CVE-2024-57086 is a high-severity (CVSS 8.2) CWE-1321 vulnerability in node-opcua-alarm-condition. A fix is available for node-opcua-alarm-condition — see the affected versions and patch details below.

node-opcua-alarm-condition prototype pollution vulnerability

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-57086.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs39th percentile — riskier than 39% of all scored CVEsHighest risk
0.00%0.31%0.63%0.94%0.2%0.4%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

1other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
node-opcua-alarm-conditionnpm
173Kdownloads / week

Description

A prototype pollution in the function fieldsToJson of node-opcua-alarm-condition v2.134.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmnode-opcua-alarm-conditionall versions2.137.0npm install node-opcua-alarm-condition@2.137.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-opcua-alarm-condition, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update node-opcua-alarm-condition to 2.137.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-57086 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

A prototype pollution in the function fieldsToJson of node-opcua-alarm-condition v2.134.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.
O3 Security · Impact-Aware SCA

Is CVE-2024-57086 in your dependencies?

Find it across npm, including transitive dependencies.

CVE-2024-57086: node-opcua-alarm DoS — Fixed in 2.137.0