CVE-2026-96432EUVD-2026-109779GHSA-8HQC-789F-9CHH
Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fix or patch referenced
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
The Qt framework's network module, specifically its QNetworkAccessManager component used for HTTP/2 connections, is affected. A malicious or compromised server can trigger a null pointer dereference that crashes any application using it.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- qt qt
From 6.8.0 · through 6.8.9; From 6.9.0 · through 6.11.2