Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade thunderbird-esrUpgrade thunderbirdUpgrade firefox-esrUpgrade firefox | Jul 25, 2025 | Jul 24, 2025 |
| Mfsa2025 56 | — | Upgrade to Mozilla Firefox version 141.0 | Jul 23, 2025 | Jul 22, 2025 |
| Mfsa2025 59 | — | Upgrade to Mozilla Firefox ESR version 140.1 | Jul 23, 2025 | Jul 22, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.1 | Jul 23, 2025 | Jul 22, 2025 |
| Suse | — | Upgrade pipewire-spa-toolsUpgrade pipewireUpgrade mozillathunderbird-translations-commonUpgrade xdg-desktop-portal-develUpgrade pipewire-toolsUpgrade pipewire-langUpgrade pipewire-modules-0_3Upgrade gstreamer-plugin-pipewireUpgrade xdg-desktop-portal-langUpgrade xdg-desktop-portalUpgrade mozillafirefox-branding-upstreamUpgrade pipewire-spa-plugins-0_2Upgrade mozillathunderbird-translations-otherUpgrade mozillathunderbirdUpgrade mozillafirefox-translations-otherUpgrade pipewire-modulesUpgrade mozillafirefox-translations-commonUpgrade mozillafirefox-develUpgrade libpipewire-0_3-0Upgrade mozillafirefoxUpgrade mozillafirefox-branding-sle | Dec 5, 2025 | Jul 25, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 24, 2025 | Jul 22, 2025 |
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