CVE-2026-74962 — Site isolation issue in the Networking: Cookies component
Site isolation issue in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.1…
Published: 2026-08-18 · CVSS: 8.1 · CVSS 3.1
Site isolation issue in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7