High severity7.3NVD Advisory· Published May 7, 2026· Updated Jul 28, 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
15cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 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: >=150.0,<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,<150.0.2
- osv-coords9 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed
< 140.10.2-r0+ 8 more
- (no CPE)range: < 140.10.2-r0
- (no CPE)range: < 140.10.2-r0
- (no CPE)range: < 140.10.2-r0
- (no CPE)range: < 140.10.2-1.el10_2
- (no CPE)range: < 140.10.2-1.el9_8
- (no CPE)range: < 150.0.2-1.1
- (no CPE)range: < 140.12.0-bp160.1.1
- (no CPE)range: < 140.10.2-1.1
- (no CPE)range: < 140.10.2-1.1
Patches
Vulnerability mechanics
References
30- 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
- access.redhat.com/errata/RHSA-2026:19160nvd
- access.redhat.com/errata/RHSA-2026:20566nvd
- access.redhat.com/errata/RHSA-2026:20574nvd
- access.redhat.com/errata/RHSA-2026:21381nvd
- access.redhat.com/errata/RHSA-2026:22325nvd
- access.redhat.com/errata/RHSA-2026:22643nvd
- access.redhat.com/errata/RHSA-2026:24508nvd
- access.redhat.com/errata/RHSA-2026:24509nvd
- access.redhat.com/errata/RHSA-2026:24510nvd
- access.redhat.com/errata/RHSA-2026:24511nvd
- access.redhat.com/errata/RHSA-2026:24516nvd
- access.redhat.com/errata/RHSA-2026:24755nvd
- access.redhat.com/errata/RHSA-2026:24983nvd
- access.redhat.com/errata/RHSA-2026:25015nvd
- access.redhat.com/errata/RHSA-2026:26174nvd
- access.redhat.com/errata/RHSA-2026:26268nvd
- access.redhat.com/errata/RHSA-2026:26269nvd
- access.redhat.com/errata/RHSA-2026:26270nvd
- access.redhat.com/errata/RHSA-2026:26521nvd
- access.redhat.com/errata/RHSA-2026:26536nvd
- access.redhat.com/errata/RHSA-2026:26539nvd
- access.redhat.com/security/cve/CVE-2026-8090nvd
- bugzilla.redhat.com/show_bug.cginvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8090.jsonnvd
News mentions
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