Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, Thunderbird 140.13, Firefox ESR 140.15, and Thunderbird 140.15.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Aug 5, 2026 | Aug 4, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefox | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-debugsource | Aug 18, 2026 | Jul 21, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jul 23, 2026 | Jul 23, 2026 |
| Mfsa2026 84 | — | Upgrade to Mozilla Firefox ESR version 140.15Upgrade to the latest version of Mozilla Firefox | Sep 1, 2026 | Sep 1, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.15Upgrade to the latest version of Mozilla Thunderbird | Sep 1, 2026 | Sep 1, 2026 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade thunderbirdUpgrade firefox | Oct 22, 2026 | Jul 21, 2026 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbird-debuginfoNo solution existsUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox | Jul 27, 2026 | Jul 21, 2026 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-x11Upgrade firefox-debugsource | Jul 31, 2026 | Jul 29, 2026 |
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