CVE-2026-8962

High

Published: 19/05/2026(UTC)Translated: 15/06/2026(UTC)NVD NIST

Summary

A mitigation bypass vulnerability in the DOM security component. This was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Risk Assessment

The bypass could lead to unauthorized access to user data, posing a serious security risk to the organization.

Recommendation

It is recommended to update to the latest versions of Firefox and Thunderbird to mitigate this vulnerability.

Original NVD description (English source)

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.