CVE-2026-16399 Site isolation issue in the DOM: Navigation component

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153...

EUVD-2026-46237

Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153...

CVE-2026-16371

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16371

A privilege escalation vulnerability exists in the DOM: Navigation component of the Mozilla Firefox web browser and Thunderbird mail client. This flaw allows for potential unauthorized privilege gains within the browser environment. The vulnerability has been addressed in Firefox 153 , Firefox ES...

CVE-2026-16366

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153...

CVE-2026-16351 Sandbox escape due to use-after-free in the DOM: Navigation component

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16349

The Mozilla Firefox and Thunderbird browsers are affected by CVE-2026-16349 , a Same-origin policy bypass in the DOM: Navigation component . This vulnerability allows for the bypass of security boundaries intended to isolate different web origins. The issue has been addressed in Firefox 153 , Fir...

CVE-2026-16349

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16349

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

PT-2026-61861

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13 Description A same-origin policy bypass exists in the DOM Navigation...

firefox: thunderbird: Sandbox escape in the DOM: Navigation component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape in the DOM: Navigation component...

CVE-2026-12295 Sandbox escape in the DOM: Navigation component

Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12...