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CVE-2026-16375

Firefox

Description

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

CVSS 9.8EPSS 0.209%Risk 1
View source
Published
2026-07-21 13:17:12
Affected versions
<153,<140.13
Type
Web application
Last modified
2026-07-24 15:15:12
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H