CVE-2026-3846

MEDIUM

Firefox < 148.0.2 - Same-Origin Policy Bypass in CSS Parsing and Computation

Title source: llm
STIX 2.1

Description

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

References (2)

Core 2

Scores

CVSS v3 6.5
EPSS 0.0011
EPSS Percentile 1.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-346
Status published
Products (2)
mozilla/firefox < 148.0.2
Mozilla/Firefox 148.0.2
Published Mar 10, 2026
Tracked Since Mar 11, 2026