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CVE-2026-8950

Firefox

Description

Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

CVSS 9.3EPSS 0.194%Risk 0.95
View source
Published
2026-05-19 14:16:51
Affected versions
<151
Type
Core software
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N