Critical severity9.1NVD Advisory· Published Jun 16, 2026· Updated Jun 16, 2026
CVE-2026-12316
CVE-2026-12316
Description
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- Range: <152
- Range: <152
- osv-coords4 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
< 152-r0+ 3 more
- (no CPE)range: < 152-r0
- (no CPE)range: < 0
- (no CPE)range: < 152-r0
- (no CPE)range: < 152.0-1.1
Patches
Vulnerability mechanics
References
3News mentions
2- Mozilla Patches 25 CVEs in Firefox and Thunderbird, Including Two Critical DOM Security BypassesVypr Intelligence · Jun 16, 2026
- Thunderbird: 25 CVEs Disclosed in Single Advisory, Two Critical DOM BypassesVypr Intelligence · Jun 16, 2026