CVE-2026-6755

CVE-2026-6755CVE-2026-6755

mozilla / firefox

Description

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

Scoring

CVSS 6.5 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Last modified2026-10-26
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.