{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103645", "assignerOrgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3", "state": "PUBLISHED", "assignerShortName": "Qt", "dateReserved": "2026-10-01T06:20:58.674Z", "datePublished": "2026-11-13T09:36:23.530Z", "dateUpdated": "2026-11-13T09:36:23.530Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3", "shortName": "Qt", "dateUpdated": "2026-11-13T09:36:23.530Z"}, "title": "Integer overflow vulnerability in QTextCodec fromUnicode() and toUnicode() impacts Qt", "datePublic": "2026-11-13T09:30:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-835", "description": "CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-92", "descriptions": [{"lang": "en", "value": "CAPEC-92 Forced Integer Overflow"}]}], "affected": [{"vendor": "qt", "product": "qt", "modules": ["qtbase", "qt5compat"], "versions": [{"status": "unknown", "version": "0", "lessThan": "5.0.0", "versionType": "python"}, {"status": "affected", "version": "5.0.0", "lessThan": "6.8.9", "versionType": "python"}, {"status": "affected", "version": "6.9.0", "lessThan": "6.11.3", "versionType": "python"}], "defaultStatus": "unaffected", "cpes": ["cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*", "cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*", "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*"]}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndExcluding": "6.8.9"}, {"vulnerable": true, "criteria": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.0", "versionEndExcluding": "6.11.3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndExcluding": "6.0.0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.0", "versionEndExcluding": "6.8.9"}, {"vulnerable": true, "criteria": "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9.0", "versionEndExcluding": "6.11.3"}]}]}], "descriptions": [{"lang": "en", "value": "An integer overflow vulnerability in the Qt QTextCodec fromUnicode() and toUnicode() functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt Core module (Qt 5). Only builds where Qt is compiled with ICU support are affected.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>An integer overflow vulnerability in the Qt <code>QTextCodec</code> <code>fromUnicode()</code> and <code>toUnicode()</code> functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt Core module (Qt 5). Only builds where Qt is compiled with ICU support are affected.</p>"}]}], "references": [{"url": "https://www.qt.io/security-advisories?search=CVE-2026-103645", "tags": ["vendor-advisory"]}, {"url": "https://codereview.qt-project.org/c/qt/qt5compat/+/762795", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "UNREPORTED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "USER", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "CLEAR", "version": "4.0", "baseSeverity": "LOW", "baseScore": 1.1, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/R:U/U:Clear"}}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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