PT-2026-61890 · Mozilla · Firefox+1

CVE-2026-16378

Published

2026-07-21

Updated

2026-08-31

CVSS v3.1

7.5

High

Vector

AV: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.

Fix

RCE

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CVE-2026-16378

OPENSUSE-SU-2026:11358-1

OPENSUSE-SU-2026:11373-1

OPENSUSE-SU-2026:21713-1

SUSE-SU-2026:23411-1

Firefox

Thunderbird