High severity7.3NVD Advisory· Published Jun 16, 2026· Updated Jun 17, 2026
CVE-2026-12324
CVE-2026-12324
Description
Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
31- osv-coords24 versionspkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/thunderbirdpkg:apk/chainguard/firefoxpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/firefox-esrpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/firefox-x11pkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefox
< 140.12.0-150200.152.242.1+ 23 more
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-150200.152.242.1
- (no CPE)range: < 140.12.0-112.321.1
- (no CPE)range: < 140.12.0-112.321.1
- (no CPE)range: < 152.0-1.1
- (no CPE)range: < 140.12.0-160000.1.1
- (no CPE)range: < 140.12.0-1.el9_8.alma.1
- (no CPE)range: < 140.12-r0
- (no CPE)range: < 140.12.0-bp160.1.1
- (no CPE)range: < 140.12.0-1.1
- (no CPE)range: < 140.12-r0
- (no CPE)range: < 140.12.0-1.1
- (no CPE)range: < 140.12.0-1.el9_8.alma.1
- (no CPE)range: < 140.12-r0
- (no CPE)range: < 140.12.0-1.el8_10.alma.1
>=152+ 3 more
- (no CPE)range: >=152
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <140.12.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <152.0.0
- (no CPE)range: <140.12
>=152+ 2 more
- (no CPE)range: >=152
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <140.12.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <152.0.0
Patches
Vulnerability mechanics
References
5- www.mozilla.org/security/advisories/mfsa2026-57/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-58/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-60/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-61/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
3- 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
- Mozilla Patches 11 CVEs in Firefox and Thunderbird, Including Critical DOM BypassVypr Intelligence · Jun 16, 2026