CVE-2025-57330
web3-core-subscriptions has a Prototype Pollution vulnerability
EPSS 0.14%
Description
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.
How to fix CVE-2025-57330
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- npm/web3-core-subscriptions—no fix listed
Is CVE-2025-57330 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, <= 2.0.0-alpha.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |