CVE-2025-57329: WEB3JS WEB3-Core-Method

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

web3-core-method is a package designed to creates the methods on the web3 modules. A Prototype Pollution vulnerability in the attachToObject function of web3-core-method 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.

Affected products

• WEB3JS WEB3-Core-Method: up to and including 1.10.4

Published 2025-09-24. Last modified 2026-06-17.