CVE-2026-3846mediumCWE-346

CVE-2026-3846: medium-severity vulnerability in Mozilla Firefox

Same-origin policy bypass in the CSS Parsing and Computation component

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.1%
Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 148.0.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected products
Mozilla · Firefox
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