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VulnerabilityPublished

CVE-2026-96432: qt · NULL Pointer Dereference

Affects qtSource CVE Database V5

0

Not known to be exploited · CVSS 2.1 Low.

Data as of 26 Oct 2026, 13:07 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/RE:L/U:Green

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
qtqtAffected
  • >=6.8.0 <=6.8.9
  • >=6.9.0 <=6.11.2
Fixed in–
GitHubqt/qtbasepkg:github/qt/qtbaseOther threatsAffected
  • >=6.8.0 <=6.8.9
  • >=6.9.0 <=6.11.2
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
  • cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*

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

AI-suggested

Until a fix is available, consider limiting exposure to untrusted HTTP/2 servers or implementing application-level safeguards to handle unexpected HTTP/2 frames gracefully.

Description

CVE-2026-96432 is a low-severity vulnerability in the Qt Network module's QNetworkAccessManager class. It arises when a malicious or compromised HTTP/2 server withholds SETTINGS ACK, sends a RST_STREAM on a completed stream planting a null pointer, and then sends a PUSH_PROMISE for that stream. This sequence causes a null pointer dereference that crashes the application. The affected Qt versions are from 6.8.0 through 6.8.9 and 6.9.0 through 6.11.2.

References

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