High severity7.3NVD Advisory· Published May 7, 2026· Updated May 8, 2026
CVE-2026-8090
CVE-2026-8090
Description
Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <150.0.2
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.35.2
- (no CPE)range: <=140.10.1 and <=115.35.1 (fixed in 140.10.2 and 115.35.2)
- (no CPE)range: <=150.0.1 (fixed in 150.0.2)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <150.0.2
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <140.10.2
- (no CPE)range: <=150.0.1 and <=140.10.1 (fixed in 150.0.2 and 140.10.2)
- osv-coords5 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweed
< 140.10.2-1.el10_2+ 4 more
- (no CPE)range: < 140.10.2-1.el10_2
- (no CPE)range: < 140.10.2-1.el9_8
- (no CPE)range: < 140.10.2-1.1
- (no CPE)range: < 150.0.2-1.1
- (no CPE)range: < 140.10.2-1.1
Patches
Vulnerability mechanics
References
6- www.mozilla.org/security/advisories/mfsa2026-40/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-41/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-42/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-43/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-44/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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