CVE-2026-110249

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{"bugzilla": {"description": "thunderbird: thunderbird: Denial of Service via excessive attributes in SOAP response", "id": "2550754", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550754"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in Thunderbird. A malicious, compromised, or intercepted Exchange server can cause a Denial of Service (DoS) by returning a crafted Simple Object Access Protocol (SOAP) response containing an element with an excessive number of attributes. Processing these attributes monopolizes the application's main thread, rendering the client unresponsive for an extended period."], "name": "CVE-2026-110249", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-13T18:08:38Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-110249\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-110249\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=2077826\nhttps://www.mozilla.org/security/advisories/mfsa2026-109/\nhttps://www.mozilla.org/security/advisories/mfsa2026-110/"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[153.5,154.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[158,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Thunderbird", "source": "cna", "vendor": "Mozilla"}, "product": "thunderbird", "vendor": "mozilla"}], "created": "2026-10-13T20:15:14.039382+00:00", "updated": "2026-10-22T23:30:13.585547+00:00", "vendors": ["mozilla", "mozilla$PRODUCT$thunderbird"]}