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Vulnerabilities CVE-2026-16396

CVE-2026-16396

None
Open
TLP:CLEAR

Privilege escalation in WebExtensions

NVD CVE.org

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Description

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

Details

EPSS Score ⓘ
0.24%

15.3th percentile

Confidence
90%
Published
Jul 21, 2026
Last Modified
Jul 24, 2026
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