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Mozilla FirefoxSite isolation issue in the Networking component

Risk 86
Severity
9.8
Infoleak
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

First published (updated )
CVE-2026-16387

Mozilla FirefoxSame-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox …

Risk 33
Severity
7

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

First published (updated )
REDHAT-BUG-2503485

Mozilla FirefoxMitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and …

Risk 19
Severity
4

Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

First published (updated )
REDHAT-BUG-2503512

Mozilla FirefoxUse After Free

Risk 33
Severity
7
Use After Free

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.

First published (updated )
REDHAT-BUG-2503444

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