Medium severity6.5NVD Advisory· Published Mar 10, 2026· Updated Jun 17, 2026
CVE-2026-3846
CVE-2026-3846
Description
Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 148.0.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <148.0.2
- (no CPE)range: <148.0.2
- osv-coords5 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed
< 148.0.2-r0+ 4 more
- (no CPE)range: < 148.0.2-r0
- (no CPE)range: < 0
- (no CPE)range: < 148.0.2-r0
- (no CPE)range: < 148.0.2-1.1
- (no CPE)range: < 153.0-1.1
Patches
Vulnerability mechanics
References
2- www.mozilla.org/security/advisories/mfsa2026-19/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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