CVE-2025-8036

None

Open

TLP:CLEAR

DNS rebinding circumvents CORS

NVD CVE.org

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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.

Details

EPSS Score ⓘ: 0.42%

34.5th percentile
Confidence: 90%
Published: Jul 22, 2025
Last Modified: Jul 29, 2026

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