A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | May 13, 2025 | Apr 29, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debuginfo | May 30, 2025 | Apr 29, 2025 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefoxUpgrade firefox-debuginfo | Jun 3, 2025 | Apr 29, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | May 2, 2025 | Apr 29, 2025 |
| Freebsd | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-esr | May 12, 2025 | May 11, 2025 |
| Mfsa2025 28 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 138.0 | Apr 30, 2025 | Apr 29, 2025 |
| Mfsa2025 29 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.10 | Apr 30, 2025 | Apr 29, 2025 |
| Mfsa2025 30 | — | Upgrade to Mozilla Firefox ESR version 115.23Upgrade to the latest version of Mozilla Firefox | Apr 30, 2025 | Apr 29, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.10Upgrade to the latest version of Mozilla Thunderbird | Apr 30, 2025 | Apr 29, 2025 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | May 6, 2025 | Apr 29, 2025 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox-x11No solution existsUpgrade firefox-debugsource | May 6, 2025 | Apr 29, 2025 |
| Rocky_linux | — | Upgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox-x11Upgrade thunderbirdUpgrade firefox | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-other | May 5, 2025 | Apr 29, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Apr 29, 2025 |
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