CVE-2026-107479 (GCVE-0-2026-107479)

Vulnerability from cvelistv5 – Published: 2026-11-04 12:10 – Updated: 2026-11-04 12:10
VLAI
Title
Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework
Summary
An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.
CWE
  • CWE-197 - Numeric Truncation Error
Assigner
Qt CNA under the mitre root
CNA scorecard A 92/100 over 28 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
qt Qt Unknown: 0 , < 5.0.0 (python)
Affected: 5.0.0 , ≤ 6.8.8 (python)
Affected: 6.9.0 , ≤ 6.11.2 (python)
    cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
    cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*
    cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
            "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*",
            "cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "qt5compat",
            "qtbase"
          ],
          "product": "Qt",
          "vendor": "qt",
          "versions": [
            {
              "lessThan": "5.0.0",
              "status": "unknown",
              "version": "0",
              "versionType": "python"
            },
            {
              "lessThanOrEqual": "6.8.8",
              "status": "affected",
              "version": "5.0.0",
              "versionType": "python"
            },
            {
              "lessThanOrEqual": "6.11.2",
              "status": "affected",
              "version": "6.9.0",
              "versionType": "python"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.\u003c/p\u003e"
            }
          ],
          "value": "An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-92",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-92 Forced Integer Overflow"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 1.7,
            "baseSeverity": "LOW",
            "exploitMaturity": "UNREPORTED",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/RE:L/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-197",
              "description": "CWE-197 Numeric Truncation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-04T12:10:28.423Z",
        "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-2026-107479:"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://codereview.qt-project.org/c/qt/qt5compat/+/763226"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
    "assignerShortName": "Qt",
    "cveId": "CVE-2026-107479",
    "datePublished": "2026-11-04T12:10:28.423Z",
    "dateReserved": "2026-10-08T07:59:02.714Z",
    "dateUpdated": "2026-11-04T12:10:28.423Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-107479",
      "date": "2026-11-05",
      "epss": "0.00163",
      "percentile": "0.0553"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
                  "cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*",
                  "cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "modules": [
                  "qt5compat",
                  "qtbase"
                ],
                "product": "Qt",
                "vendor": "qt",
                "versions": [
                  {
                    "lessThan": "5.0.0",
                    "status": "unknown",
                    "version": "0",
                    "versionType": "python"
                  },
                  {
                    "lessThanOrEqual": "6.8.8",
                    "status": "affected",
                    "version": "5.0.0",
                    "versionType": "python"
                  },
                  {
                    "lessThanOrEqual": "6.11.2",
                    "status": "affected",
                    "version": "6.9.0",
                    "versionType": "python"
                  }
                ]
              }
            ],
            "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash."
          }
        ],
        "id": "CVE-2026-107479",
        "lastModified": "2026-11-04T13:17:21.540",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "LOCAL",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 1.7,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "UNREPORTED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "GREEN",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "ACTIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Green",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "LOW"
              },
              "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-11-04T13:17:21.540",
        "references": [
          {
            "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
            "url": "https://codereview.qt-project.org/c/qt/qt5compat/+/763226"
          },
          {
            "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
            "url": "https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107479:"
          }
        ],
        "sourceIdentifier": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-197"
              }
            ],
            "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-06T05:56:01+00:00",
      "cve": "CVE-2026-107479",
      "id": "CVE-2026-107479",
      "initial_release_date": "2026-11-04T12:10:28.423000+00:00",
      "product_status:known_affected": "2",
      "product_status:under_investigation": "10",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "qt6: qt6: Denial of Service via integer truncation in QTextCodec conversion functions",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107479.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.