CVE-2024-21505

Published: Mar 25, 2024Modified: Jun 17, 2026Deferred

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: report@snyk.io (Secondary)

Description

Versions of the package web3-utils before 4.2.1 are vulnerable to Prototype Pollution via the utility functions format and mergeDeep, due to insecure recursive merge. An attacker can manipulate an object's prototype, potentially leading to the alteration of the behavior of all objects inheriting from the affected prototype by passing specially crafted input to these functions.

Related CWEs

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

References (4)

https://github.com/web3/web3.js/commit/8ed041c6635d807b3da8960ad49e125e3d1b0e80

Source: report@snyk.io

https://security.snyk.io/vuln/SNYK-JS-WEB3UTILS-6229337

Source: report@snyk.io

https://github.com/web3/web3.js/commit/8ed041c6635d807b3da8960ad49e125e3d1b0e80

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.snyk.io/vuln/SNYK-JS-WEB3UTILS-6229337

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

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