CVE-2021-30515: 
Node.js vulnerability analysis and mitigation

CVE-2021-30515 is a Use-after-free vulnerability discovered in the File API component of Google Chrome versions prior to 90.0.4430.212. The vulnerability was disclosed and patched in May 2021, affecting all Chrome browser versions before the security update (Chrome Release).

The vulnerability is classified as a Use-after-free (CWE-416) issue in Chrome's File API implementation. It 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 high severity with potential for significant impact (NVD).

The vulnerability could allow a remote attacker to potentially exploit heap corruption through a specially crafted HTML page, potentially leading to arbitrary code execution, information disclosure, or system compromise (Gentoo Security).

The vulnerability was patched in Chrome version 90.0.4430.212. Users and administrators are advised to update to this version or later. Various Linux distributions also released security updates to address this vulnerability, including Fedora and Gentoo (Fedora Update, Gentoo Security).