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cve recordcritical

CVE-2026-84140

mozilla · firefox

Published
CVSS9.8
Severitycritical
WeaknessCWE-346
ExploitedNot in CISA KEV

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.

References

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