Safari before 27.2: Web Content sandbox escape (CVE-2026-113897)

critical severity · published 2026-10-26

A remote attacker may be able to break out of the Web Content sandbox when Safari processes malicious web content. This gives the attacker a way past Safari's content isolation barrier.

Fixed in: 27.2

CVE: CVE-2026-113897

Source: NVD

Am I affected?

You are affected if the installed version is older than 27.2. Check the version you have and update to 27.2 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 543 and your operating system.