Out-of-Bounds Read Vulnerability in Qt NFC Affects Multiple Versions
CVE-2026-13326

6.9MEDIUM

Key Information:

Vendor

Qt

Status
Qt
Vendor
CVE Published:
11 September 2026

What is CVE-2026-13326?

An out-of-bounds read vulnerability has been identified in Qt NFC's language code length parsing, potentially allowing an attacker situated nearby to exploit this flaw. By utilizing a specially crafted NFC tag, the attacker can induce a denial of service condition or reveal limited memory information. This presents significant security risks for applications that utilize Qt NFC, necessitating immediate attention and remediation.

Affected Version(s)

qt 5.2.0 < 6.8.9

qt 6.9.0 < 6.11.2

References

https://codereview.qt-project.org/c/qt/qtconnectivity/+/7...
patch

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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