Security Advisory

CVE-2025-8036

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-07-22 20:49:25

Last updated 2026-04-13 14:26:51

Assigner mozilla

State PUBLISHED

Description

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.

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