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.
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | freebsd-upgrade-package-firefoxfreebsd-upgrade-package-firefox-esrfreebsd-upgrade-package-thunderbirdfreebsd-upgrade-package-thunderbird-esr | Jul 25, 2025 | Jul 24, 2025 | |
| Mfsa2025 56 | mozilla-firefox-upgrade-141_0 | Jul 23, 2025 | Jul 22, 2025 | |
| Mfsa2025 59 | mozilla-firefox-esr-upgrade-140_1 | Jul 23, 2025 | Jul 22, 2025 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-140_1 | Jul 23, 2025 | Jul 22, 2025 | |
| Suse | — | suse-upgrade-gstreamer-plugin-pipewiresuse-upgrade-libpipewire-0_3-0suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-slesuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-othersuse-upgrade-pipewiresuse-upgrade-pipewire-langsuse-upgrade-pipewire-modulessuse-upgrade-pipewire-modules-0_3suse-upgrade-pipewire-spa-plugins-0_2suse-upgrade-pipewire-spa-toolssuse-upgrade-pipewire-toolssuse-upgrade-xdg-desktop-portalsuse-upgrade-xdg-desktop-portal-develsuse-upgrade-xdg-desktop-portal-lang | Dec 5, 2025 | Jul 25, 2025 |
| Ubuntu | ubuntu-upgrade-thunderbird | Jul 24, 2025 | Jul 22, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub