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CVE-2026-113866

🗓️ 20 Oct 2026 19:14:54Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

Thunderbird Exchange AutoDiscover lookup sends account passwords over plain HTTP.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-113866
20 Oct 202619:28
–circl
cvelist
Cvelist
CVE-2026-113866 Account password sent unencrypted during Exchange account setup
20 Oct 202619:14
–cvelist
euvd
EUVD
EUVD-2026-105293
20 Oct 202619:14
–euvd
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 158.0.1 — Mozilla
20 Oct 202600:00
–mozilla
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 153.5.1 — Mozilla
20 Oct 202600:00
–mozilla
nvd
NVD
CVE-2026-113866
20 Oct 202620:17
–nvd
redhatcve
RedhatCVE
CVE-2026-113866
20 Oct 202620:08
–redhatcve
[
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "153.5.1",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "158.0.1",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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20 Oct 2026 20:17Current
5.8Medium risk
Vulners AI Score5.8
4