critical severity ยท published 2026-10-20
A remote attacker who has already taken over a browser renderer process can break the isolation that keeps websites in separate processes through a crafted web page, using an incorrect authorization flaw in the ServiceWorker component of Chrome. Chromium rates it Medium.
Fixed in: 156.0.8078.47
CVE: CVE-2026-113211
Source: NVD
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 395 and your operating system.