Nebula Security

Topic

CVE-2026-7899

Check Your Motor Oil Before Turbocharging: CVE-2026-7899, When V8's Optimization Engine Builds Up Carbon

August 27, 2026 chrome

Check Your Motor Oil Before Turbocharging: CVE-2026-7899, When V8's Optimization Engine Builds Up Carbon

In April, we reported a severe vulnerability in V8, the JavaScript and WebAssembly engine used by Chrome. This vulnerability enabled remote code execution in Chrome’s renderer process. This writeup will cover the technical details of the vulnerability. The research was performed with internal tool Mnemosyne, by Project WhatForLunch browser security team at Nebula Security, led by @xia0o0o0o and @rcv

10 min read