PT-2026-111467
CVE-2026-109746
·
Published
2026-10-13
·
Updated
2026-10-20
Description by
CVSS 3.1
7.3
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 158
Thunderbird versions prior to 158
Description
A mitigation bypass exists within the DOM Security component, which could allow an attacker to circumvent security measures implemented in the Document Object Model (DOM), the programming interface for HTML and XML documents.
Recommendations
Update Firefox to version 158 or later.
Update Thunderbird to version 158 or later.
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