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CVE-2026-84119

🗓️ 01 Sep 2026 12:18:39Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

Sandbox escape via use-after-free in DOM: Navigation component fixed in Firefox 155 and ESR builds.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-84119 Sandbox escape due to use-after-free in the DOM: Navigation component
1 Sep 202612:18
cvelist
debiancve
Debian CVE
CVE-2026-84119
1 Sep 202612:18
debiancve
euvd
EUVD
EUVD-2026-69064
1 Sep 202612:18
euvd
nvd
NVD
CVE-2026-84119
1 Sep 202613:20
nvd
osv
OSV
DEBIAN-CVE-2026-84119
1 Sep 202613:20
osv
ptsecurity
Positive Technologies
PT-2026-84172
1 Sep 202600:00
ptsecurity
ubuntucve
UbuntuCve
CVE-2026-84119
1 Sep 202600:00
ubuntucve
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.40",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.15",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.2",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "155",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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01 Sep 2026 15:17Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.6
8