PT-2026-61890

CVE-2026-16378

Published

2026-07-21

Updated

2026-09-18

CVSS 3.1

7.5

High

MetricsAV: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 issue exists in the Document Object Model (DOM) specifically within the Copy & Paste and Drag & Drop component.

Recommendations Update Firefox to version 153. Update Thunderbird to version 153.

Exploitability

Fix

Impacts

Vendors

Affected products

Weakness enumeration

Related identifiers

CLSA-2026-1787115646

OPENSUSE-SU-2026:11358-1

OPENSUSE-SU-2026:11373-1

OPENSUSE-SU-2026:21713-1

SUSE-SU-2026:23411-1

SUSE-SU-2026:23590-1

SUSE-SU-2026:4140-1

SUSE-SU-2026:4156-1

SUSE-SU-2026:4268-1

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