Mitigation bypass in the Data Loss Prevention 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.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Sep 1, 2026 | Aug 18, 2026 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Aug 20, 2026 | Aug 20, 2026 |
| Mfsa2026 74 | — | Upgrade to Mozilla Firefox version 154.0Upgrade to the latest version of Mozilla Firefox | Aug 18, 2026 | Aug 18, 2026 |
| Mfsa2026 76 | — | Upgrade to Mozilla Firefox ESR version 140.14Upgrade to the latest version of Mozilla Firefox | Aug 18, 2026 | Aug 18, 2026 |
| Mfsa2026 77 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 153.1 | Aug 18, 2026 | Aug 18, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 153.1 | Aug 18, 2026 | Aug 18, 2026 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade firefox-x11No solution existsUpgrade firefox-debugsource | Aug 20, 2026 | Aug 18, 2026 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-x11 | Aug 26, 2026 | Aug 25, 2026 |
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