CVE-2026-96432— Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
Quick assessment
Affected
qt qt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
恶意或被攻陷的 HTTP/2 服务器可通过扣留 SETTINGS ACK 帧，在已完成的数据流上发送 RST_STREAM 以植入空指针，随后再针对该数据流发送 PUSH_PROMISE 帧，从而在 Qt Network 模块的 QNetworkAccessManager 类中触发空指针解引用漏洞，导致应用程序崩溃。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-96432
Vulnerability Information
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Vulnerability Title
Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-96432
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-96432 (2)
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