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CVE-2026-53900

🗓️ 16 Jun 2026 11:53:05Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Firefox mobile leaked cookies during PDF openings via redirects, enabling cookie injection. Fixed.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-53900
16 Jun 202614:05
circl
Cvelist
CVE-2026-53900 Cookie injection was possible when opening a PDF link
16 Jun 202611:53
cvelist
EUVD
EUVD-2026-37078
16 Jun 202615:33
euvd
NVD
CVE-2026-53900
16 Jun 202613:16
nvd
Positive Technologies
PT-2026-49701
16 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-53900 Cookie injection was possible when opening a PDF link
16 Jun 202611:53
vulnrichment
[
  {
    "product": "Firefox for iOS",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "152.0",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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16 Jun 2026 15:16Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.14.3
SSVC
5