CVE-2026-3846

medium

Description

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

References

https://www.mozilla.org/security/advisories/mfsa2026-19/

https://bugzilla.mozilla.org/show_bug.cgi?id=2018400

Details

Source: Mitre, NVD

Published: 2026-03-10

Updated: 2026-03-10

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Severity: Medium