CVE-2024-21505

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1321

Affected software

No affected versions have been published.

Timeline

Published
Mar 25, 2024
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2024-21505: High severity, CVSS 7.5 | Vulnix