CVE-2026-3846

Description

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

PUBLISHED Reserved 2026-03-09 | Published 2026-03-10 | Updated 2026-03-13 | Assigner mozilla

Product status

Credits

Jun Yang

References

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

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

cve.org (CVE-2026-3846)

nvd.nist.gov (CVE-2026-3846)

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