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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-16388

Sandbox escape in the DOM: Networking component

Description

Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 153 to ≤ *unaffected

Mozilla Thunderbird

  • 153 to ≤ *unaffected

References