PT-2026-61912 · Mozilla · Firefox+1

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CVE-2026-16400

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Published

2026-07-21

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Updated

2026-08-31

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153
Description An information disclosure issue exists within the DOM Security component.

Fix

Information Disclosure

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Weakness Enumeration

Related Identifiers

CVE-2026-16400
OPENSUSE-SU-2026:11358-1
OPENSUSE-SU-2026:11373-1
OPENSUSE-SU-2026:21713-1
SUSE-SU-2026:23411-1

Affected Products

Firefox
Thunderbird