GitHub Advisoryadvisory · npm

GHSA-hhf6-3xpg-pggx web3-core-subscriptions has a Prototype Pollution vulnerability

LOW Published 2025-09-24 Modified 2025-09-25 Official page ↗
Aliases
CVE-2025-57330
Ecosystem
npm
Packages
web3-core-subscriptions
Severity
Low
CVSS vector
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
Weaknesses
CWE-1321
Reviewed
2025-09-25

Affected packages

• npm web3-core-subscriptions: <= 2.0.0-alpha.1 (no fix yet)

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.

Related

Alias · CVE (1)

  • CVE-2025-57330 The web3-core-subscriptions is a package designed to manages web3 subscriptions. vulnerability

Weakness · CWE (1)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness

References