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CVE-2026-100758

CRITICAL NVD
CVSS Score
9.6
Severity
CRITICAL
Source
NVD
Published
Sep 29, 2026
Description

Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

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