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VulnerabilityPublished

CVE-2026-105924: NULL Pointer Dereference Vulnerability

Source GCVE Database

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Authoritative record:CVE-2026-105924· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium : upgrade to 6.12.1 when convenient.

Data as of 30 Oct 2026, 13:52 UTC

CVSS 4.0 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Qt)CVSS 4.04.3
Patch
Available – fixed in 6.12.1
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Qt and org.qtproject/qt to 6.12.1.

Affected software

ProductAffectedFixed in
qtQtAffected
  • >=5.12.0 <=6.8.9
  • >=6.9.0 <=6.11.2
  • >=6.12.0 <6.12.1
Fixed in
  • 6.12.1
Mavenorg.qtproject/qtpkg:maven/org.qtproject/qtOther threatsAffected
  • >=5.12.0 <=6.8.9
  • >=6.9.0 <=6.11.2
  • >=6.12.0 <6.12.1
Fixed in
  • 6.12.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, users should exercise caution when processing untrusted QCborValue inputs.

Description

CVE-2026-105924 is a NULL pointer dereference vulnerability in the Qt Core module affecting the QCborValue to JSON conversion functionality. This flaw can cause application crashes or denial of service when processing certain inputs. The vulnerability has a medium severity rating with a CVSS score of 6.8.

References

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