CVE-2025-8036 Information

Description

Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability affects Firefox < 141 Firefox ESR < 140.1 Thunderbird < 141 and Thunderbird < 140.1.

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1960834 https://www.mozilla.org/security/advisories/mfsa2025-56/ https://www.mozilla.org/security/advisories/mfsa2025-59/ https://www.mozilla.org/security/advisories/mfsa2025-61/ https://www.mozilla.org/security/advisories/mfsa2025-63/

CNNVD-202507-2931 (Published: 2025-07-22)

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