๐Ÿ” CVE Alert

CVE-2026-3846

MEDIUM 6.5

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

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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

Vendor mozilla
Product firefox
Ecosystems
Industries
Technology
Published Mar 10, 2026
Last Updated Apr 13, 2026
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Affected Versions

Mozilla / Firefox
All versions affected

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2018400 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-19/

Credits

Jun Yang