CVE-2026-121189

Summary

A use-after-free vulnerability in Google Chrome's browser engine allowed remote attackers to execute arbitrary code outside the sandbox by tricking a user into visiting a malicious HTML page.

Exploitability

Exploitation requires social engineering (user interaction) to load a crafted HTML page, and success depends on memory layout conditions, making it non-trivial but feasible for skilled attackers.

Blast radius

Successful exploitation could lead to full system compromise outside Chrome's sandbox, enabling data theft, malware installation, or lateral movement within the host environment.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade Google Chrome to version 157.0.8103.38 or later.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.