CVE-2021-30548: 
Node.js vulnerability analysis and mitigation

CVE-2021-30548 is a high-severity vulnerability discovered in Google Chrome's Loader component prior to version 91.0.4472.101. The vulnerability was reported by Yangkang(@dnpushme) & Wanglu of Qihoo360 Qex Team on May 18, 2021 (Chrome Release).

The vulnerability is classified as a Use-After-Free (UAF) issue in the Loader component of Google Chrome. 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 network accessibility, low attack complexity, no privileges required, and user interaction required for exploitation (NVD).

If successfully exploited, this vulnerability could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page, potentially leading to arbitrary code execution, information disclosure, or denial of service (Gentoo Security).

The vulnerability was patched in Google Chrome version 91.0.4472.101. Users and administrators are advised to upgrade to this version or later to mitigate the risk. Various Linux distributions have also released security updates to address this vulnerability, including Fedora and Gentoo (Fedora Update, Gentoo Security).