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CVE-2026-92238 Ambiguous parsing of mail headers

🗓️ 15 Sep 2026 19:42:51Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Ambiguous mail header parsing in Thunderbird before 140.16 enabling memory safety violations.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-92238
15 Sep 202619:42
cve
euvd
EUVD
EUVD-2026-79242
15 Sep 202619:42
euvd
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 156 — Mozilla
15 Sep 202600:00
mozilla
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 140.16 — Mozilla
15 Sep 202600:00
mozilla
nvd
NVD
CVE-2026-92238
15 Sep 202620:19
nvd
[
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.16",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "156",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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