Chrome ServiceWorker: break site isolation (fix 156.0.8078.47)

high severity ยท published 2026-10-20

A remote attacker can break the isolation that keeps websites in separate processes through a crafted web page, using a race condition flaw in the ServiceWorker component of Chrome. Chromium rates it Medium.

Fixed in: 156.0.8078.47

CVE: CVE-2026-113311

Source: NVD

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