Same-origin policy bypass in the DOM: Service Workers component

CriticalVendor CVSS 9.1 / 10 1 CVE Published Nov 12, 2026 at 5:43 PM UTC

Summary

Mariner

Release Notes

Nov 12, 2026 at 5:43 PM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Nov 13, 2026 at 9:05 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Nov 13, 2026 at 3:10 PM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

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