Name: CVE-2026-3846: Origin Validation Error
Creator: Rapid7
Published: 2026-03-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-3846, CVSS 6.5, EPSS 0.00169

Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 148.0.2.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade firefox	Mar 12, 2026	Mar 12, 2026
Mfsa2026 19	—	Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 148.0.2	Mar 11, 2026	Mar 10, 2026

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CVSS Details

Covered by Rapid7

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