PT-2025-39329 · Pypi · Web3-Core-Subscriptions

Published 2025-09-24 · Updated 2025-10-17 · CVE-2025-57330

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions web3-core-subscriptions versions 1.10.4 and earlier

Description The web3-core-subscriptions package, designed for managing web3 subscriptions, contains a flaw in the attachToObject function. This issue allows for Prototype Pollution by enabling attackers to inject properties onto Object.prototype using a crafted payload. This can lead to a denial of service (DoS).

Recommendations Update web3-core-subscriptions to a version later than 1.10.4.

Exploit

Fix

DoS

Prototype Pollution

Weakness Enumeration

CWE-1321

Related Identifiers

CVE-2025-57330

GHSA-HHF6-3XPG-PGGX

Affected Products

Web3-Core-Subscriptions

References · 11

• 🔥 https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/web3-core-subscriptions%401.10.4/index.js · Exploit
• 🔥 https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57330 · Exploit
• https://osv.dev/vulnerability/CVE-2025-57330 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hhf6-3xpg-pggx · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-57330 · Security Note
• https://github.com/web3/web3.js/commit/d9660426c12210c5071aeb4e1a647c6ea9d67b12 · Note
• https://github.com/web3/web3.js · Note
• https://t.me/cveNotify/139151 · Telegram Post
• https://twitter.com/CVEnew/status/1970996100627825109 · Twitter Post
• https://t.me/CVEtracker/33284 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1971064133404561504 · Twitter Post