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CVE-2026-12304

🗓️ 16 Jun 2026 11:52:37Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

CVE-2026-12304 fixes same-origin policy bypass in Networking: Cookies in Firefox 152 and ESR 140.12.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Cvelist
CVE-2026-12304 Same-origin policy bypass in the Networking: Cookies component
16 Jun 202611:52
cvelist
EUVD
EUVD-2026-37095
16 Jun 202611:52
euvd
NVD
CVE-2026-12304
16 Jun 202613:16
nvd
Positive Technologies
PT-2026-49673
16 Jun 202600:00
ptsecurity
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.12",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "152",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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16 Jun 2026 14:51Current
5.3Medium risk
Vulners AI Score5.3
4