CVE-2025-57330

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.

Published: Sep 24, 2025
Updated: Sep 26, 2025
CVE: CVE-2025-57330
GHSA: GHSA-hhf6-3xpg-pggx
Severity: Low
Exploit:

No technical information available.

CWEs:

CWE-1321

Affected Software
References

Software	From	Fixed in
web3-core-subscriptions	-	2.0.0-alpha.1.x

https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/web3-core-subscriptions%401.10.4/index.js
https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57330
https://github.com/web3/web3.js/commit/d9660426c12210c5071aeb4e1a647c6ea9d67b12

Vulnerability Database

CVE-2025-57330

Deep Security Visibility Without the Complexity