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CVE-2026-103653 Out-of-bounds read vulnerability in CoAP message parsing impacts Qt CoAP

🗓️ 03 Nov 2026 07:35:45Reported by QtType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Out-of-bounds read in Qt CoAP message parsing causes crash or incorrect data processing.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-103653
3 Nov 202607:44
–circl
cve
CVE
CVE-2026-103653
3 Nov 202607:35
–cve
nvd
NVD
CVE-2026-103653
3 Nov 202608:17
–nvd
ptsecurity
Positive Technologies
PT-2026-136034
3 Nov 202600:00
–ptsecurity
[
  {
    "vendor": "qt",
    "product": "Qt",
    "modules": [
      "qtcoap"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "5.13.0",
        "lessThanOrEqual": "6.8.8",
        "versionType": "python"
      },
      {
        "status": "affected",
        "version": "6.9.0",
        "lessThanOrEqual": "6.11.2",
        "versionType": "python"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.13.0",
        "versionType": "python"
      }
    ],
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
      "cpe:2.3:a:qt:qtcoap:*:*:*:*:*:*:*:*"
    ]
  }
]

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