CVE-2021-29057 — node-worker-threads-pool
MEDIUMCVE-2021-29057 is a medium-severity (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in node-worker-threads-pool. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
SUCHMOKUO node-worker-threads-pool denial of service Vulnerability
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.
Exploitation and automatability from CISA’s SSVC triage for CVE-2021-29057.
EPSS Exploitation Probability
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
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.
node-worker-threads-poolnpmDescription
An issue was discovered in StaticPool in SUCHMOKUO node-worker-threads-pool version 1.4.3 that allows attackers to cause a denial of service.
This can be mitigated by manually creating a timeout. For example:
const { StaticPool } = require(\"node-worker-threads-pool\");
const staticPool = new StaticPool({
size: 1,
task: (n) => {
while (n) {
console.log(\"a\");
}
return n;
}
});
staticPool.createExecutor().setTimeout(10).exec(1).then((result) => {
console.log(\"result from thread pool:\", result);
}).catch(() => console.error('timeout'));
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | node-worker-threads-pool | all versions | No fix |
Affected Products
node-worker-threads-poolthoughtworksResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for node-worker-threads-pool, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of node-worker-threads-pool for CVE-2021-29057. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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
Is CVE-2021-29057 in your dependencies?
Find it across npm, including transitive dependencies.