{
  "containers": {
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      "affected": [
        {
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            "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
            "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*",
            "cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*"
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          "defaultStatus": "unaffected",
          "modules": [
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          "product": "Qt",
          "vendor": "qt",
          "versions": [
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              "lessThan": "4.5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "python"
            },
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              "status": "affected",
              "version": "4.5.0",
              "versionType": "python"
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              "lessThanOrEqual": "6.11.2",
              "status": "affected",
              "version": "6.9.0",
              "versionType": "python"
            }
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                  "versionStartIncluding": "0",
                  "vulnerable": false
                },
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                  "versionEndIncluding": "6.8.8",
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              "operator": "OR"
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          "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt.\u0026nbsp;Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity."
            }
          ],
          "value": "An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt.\u00a0Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity."
        }
      ],
      "impacts": [
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          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "USER",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 1.9,
            "baseSeverity": "LOW",
            "exploitMaturity": "UNREPORTED",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
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              "value": "GENERAL"
            }
          ]
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          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-131",
              "description": "CWE-131 Incorrect Calculation of Buffer Size",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T12:24:53.005Z",
        "orgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
        "shortName": "Qt"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107590:"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://codereview.qt-project.org/c/qt/qt5compat/+/762752"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Out-of-bounds write vulnerability in QTextCodec iconv-based encoding impacts Qt",
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    "assignerShortName": "Qt",
    "cveId": "CVE-2026-107590",
    "datePublished": "2026-10-27T12:24:53.005Z",
    "dateReserved": "2026-10-08T11:44:23.794Z",
    "dateUpdated": "2026-10-27T12:24:53.005Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}