High severity8.1NVD Advisory· Published Jul 22, 2025· Updated Apr 13, 2026
CVE-2025-8036
CVE-2025-8036
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.
Affected products
4cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <140.1.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <141.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <140.1.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <141.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- www.mozilla.org/security/advisories/mfsa2025-56/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-59/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-61/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-63/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
- www.kb.cert.org/vuls/id/652514nvd
News mentions
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