CVE-2021-30513: 
Node.js vulnerability analysis and mitigation

CVE-2021-30513 is a Type Confusion vulnerability discovered in V8, the JavaScript engine of Google Chrome. The vulnerability was identified prior to Chrome version 90.0.4430.212 and was disclosed in May 2021. The issue affects Google Chrome browsers and Chromium-based applications running versions before the patched release (Chrome Release).

The vulnerability is classified as a Type Confusion issue in V8, Google Chrome's JavaScript engine, which could potentially lead to heap corruption when exploited via a crafted HTML page. The vulnerability has received a CVSS v3.1 Base Score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating its severe nature (NVD).

If successfully exploited, this vulnerability could allow a remote attacker to potentially exploit heap corruption through a specially crafted HTML page, potentially leading to arbitrary code execution within the context of the browser (NVD, Gentoo Security).

The vulnerability was patched in Google Chrome version 90.0.4430.212. Users and administrators are strongly advised to upgrade to this version or later. For Fedora users, updates were provided through package version 91.0.4472.114, while Gentoo users received fixes through the same version number (Fedora Update, Gentoo Security).