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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Aug 5, 2026 | Aug 4, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Aug 18, 2026 | Jul 21, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Jul 23, 2026 | Jul 23, 2026 |
| Mfsa2026 68 | — | Upgrade to Mozilla Firefox version 153.0Upgrade to the latest version of Mozilla Firefox | Jul 21, 2026 | Jul 21, 2026 |
| Mfsa2026 70 | — | Upgrade to Mozilla Firefox ESR version 140.13Upgrade to the latest version of Mozilla Firefox | Jul 21, 2026 | Jul 21, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.13Upgrade to the latest version of Mozilla Thunderbird | Jul 21, 2026 | Jul 21, 2026 |
| Redhat_linux | — | Upgrade firefox-debugsourceNo solution existsUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox | Jul 27, 2026 | Jul 21, 2026 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade thunderbird | Jul 31, 2026 | Jul 29, 2026 |
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