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CVE-2026-16762 Denial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts Qt

🗓️ 23 Oct 2026 08:58:40Reported by QtType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

DoS in Qt Core QXmlStreamReader via crafted XML document causing high CPU consumption.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-16762
23 Oct 202609:03
–circl
cve
CVE
CVE-2026-16762
23 Oct 202608:58
–cve
euvd
EUVD
EUVD-2026-108655
23 Oct 202608:58
–euvd
nvd
NVD
CVE-2026-16762
23 Oct 202609:17
–nvd
ptsecurity
Positive Technologies
PT-2026-121808
23 Oct 202600:00
–ptsecurity
susecve
SUSE CVE
SUSE CVE-2026-16762
23 Oct 202616:34
–susecve
vulnrichment
Vulnrichment
CVE-2026-16762 Denial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts Qt
23 Oct 202608:58
–vulnrichment
[
  {
    "vendor": "qt",
    "product": "qt",
    "modules": [
      "qtbase"
    ],
    "versions": [
      {
        "status": "unknown",
        "version": "0",
        "lessThan": "4.3.0",
        "versionType": "python"
      },
      {
        "status": "affected",
        "version": "4.3.0",
        "lessThan": "6.8.9",
        "versionType": "python"
      },
      {
        "status": "affected",
        "version": "6.9.0",
        "lessThan": "6.11.2",
        "versionType": "python"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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23 Oct 2026 08:58Current
CVSS 48.7
EPSS0.00426
SSVC
4