GHSA-hhf6-3xpg-pggx · Severity: low · Ecosystem: npm — web3-core-subscriptions has a Prototype Pollution vulnerability
The web3-core-subscriptions is a package designed to manages web3 subscriptions. A Prototype Pollution vulnerability in the attachToObject function of web3-core-subscriptions version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.
Conclusion & alert: CVE-2025-57330 is rated Low Risk (35.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-09-30 | 0.02% | 0.05% | +0.04% |
| 2 | 2025-09-25 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-hhf6-3xpg-pggx · Severity: low · Ecosystem: npm — web3-core-subscriptions has a Prototype Pollution vulnerability
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| web3js | web3-core-subscriptions | < 1.10.4 | cpe:2.3:a:web3js:web3-core-subscriptions:*:*:*:*:*:node.js:*:* |