Chrome Headless race condition enables sandbox escape

high severity ยท published 2026-10-27

A remote attacker could use a crafted HTML page to execute arbitrary code outside Chrome's sandbox. The issue affects Chrome versions before 156.0.8078.73.

Fixed in: 156.0.8078.73

CVE: CVE-2026-118336

Source: NVD

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 586 and your operating system.