Chrome compositing buffer overflow allows sandbox escape

high severity · published 2026-11-10

A remote attacker who has already compromised the Chrome renderer process can run arbitrary code outside the browser sandbox via a crafted HTML page. This is a high-severity buffer overflow in Chrome's compositing component.

Fixed in: 157.0.8103.50

CVE: CVE-2026-125343

Source: NVD

Am I affected?

You are affected if the installed version is older than 157.0.8103.50. Check the version you have and update to 157.0.8103.50 or later. The fixed version is verified against a vendor or advisory source.

Get the fix

FixLane has a reviewed fix procedure for this incident: a read-only check first, then the fix. Ask the Telegram bot, or connect an AI agent to the FixLane MCP server and call get_fix_prompt with incident id 2411 and your operating system.