CVE-2026-121086

Summary

A heap-based buffer overflow in Skia, the graphics library used by Google Chrome, allowed remote code execution when a user visited a malicious HTML page due to insufficient bounds checking during rendering operations.

Exploitability

Exploitation requires user interaction (e.g., visiting a crafted webpage) and is non-trivial but feasible for an attacker with control over the rendered content; no privileged access is needed.

Blast radius

Successful exploitation could lead to full compromise of the victim's Chrome sandbox, enabling arbitrary code execution with the privileges of the compromised renderer process.

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, as explicitly stated in the vulnerability description.

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