Summary: The Indian Computer Emergency Response Team (CERT-In) has issued a high-severity alert for Google Chrome (CVE-2026-1504). The vulnerability stems from an improper implementation of the Background Fetch API, allowing remote attackers to execute arbitrary code on a user’s system via a specially crafted request.
Business Impact: High. This flaw allows for “Zero-Click” style entry if a user visits a compromised or malicious site. For corporate environments, this represents a significant endpoint threat that could lead to full system takeover and lateral movement across the internal network.
Why It Happened: The Background Fetch API, designed for large downloads in the background, lacked sufficient validation, creating a memory corruption pathway that attackers can exploit to bypass browser sandboxing.
Recommended Executive Action: Force-update all corporate browsers to version 144.0.7559.109 (or newer) immediately. Audit web logs for unusual traffic patterns originating from the Background Fetch service.
Hashtags: #ChromeSecurity #CERTIn #RCE #Vulnerability #InfoSec #BrowserHardening