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CVE-2026-100818

🗓️ 29 Sep 2026 12:36:28Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Sandbox escape due to use-after-free in the Widget: Gtk component of Firefox.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-100818
29 Sep 202614:21
–circl
cvelist
Cvelist
CVE-2026-100818 Sandbox escape due to use-after-free in the Widget: Gtk component
29 Sep 202612:36
–cvelist
debiancve
Debian CVE
CVE-2026-100818
29 Sep 202612:36
–debiancve
euvd
EUVD
EUVD-2026-88797
29 Sep 202612:36
–euvd
nvd
NVD
CVE-2026-100818
29 Sep 202613:17
–nvd
osv
OSV
DEBIAN-CVE-2026-100818
29 Sep 202613:17
–osv
slackware
Slackware Linux
[slackware-security] mozilla-firefox
29 Sep 202623:17
–slackware
susecve
SUSE CVE
SUSE CVE-2026-100818
29 Sep 202623:40
–susecve
vulnrichment
Vulnrichment
CVE-2026-100818 Sandbox escape due to use-after-free in the Widget: Gtk component
29 Sep 202612:36
–vulnrichment
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.17",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.4",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "157",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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29 Sep 2026 21:27Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.19.6
SSVC
5