Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Feb 27, 2026 | Feb 25, 2026 |
| Amazon Linux Ami 2 | — | Upgrade firefoxUpgrade thunderbird | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefoxUpgrade firefox-debuginfo | Mar 27, 2026 | Feb 24, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Mar 2, 2026 | Mar 2, 2026 |
| Mfsa2026 13 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 148.0 | Feb 25, 2026 | Feb 24, 2026 |
| Mfsa2026 14 | — | Upgrade to Mozilla Firefox ESR version 115.33Upgrade to the latest version of Mozilla Firefox | Feb 25, 2026 | Feb 24, 2026 |
| Mfsa2026 15 | — | Upgrade to Mozilla Firefox ESR version 140.8Upgrade to the latest version of Mozilla Firefox | Feb 25, 2026 | Feb 24, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.8Upgrade to the latest version of Mozilla Thunderbird | Feb 25, 2026 | Feb 24, 2026 |
| Oracle_linux | — | Upgrade firefoxUpgrade firefox-x11Upgrade thunderbird | Feb 27, 2026 | Feb 24, 2026 |
| Redhat_linux | — | Upgrade firefox-x11Upgrade firefox-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox | Feb 26, 2026 | Feb 24, 2026 |
| Rocky_linux | — | Upgrade firefox-x11Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbird | Mar 2, 2026 | Feb 26, 2026 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-openpgp-librnpUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-common | Mar 10, 2026 | Feb 26, 2026 |
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