CVE-2026-95620— Use-after-free vulnerability in QNetworkAccessManager HTTP/2 support 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.
Qt 网络模块中 Qt QNetworkAccessManager 的 HTTP/2 客户端支持存在释放后使用（use-after-free）漏洞，允许恶意或已遭入侵的 HTTP/2 服务器导致客户端应用程序崩溃，从而影响系统的可用性。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-95620
Vulnerability Information
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Vulnerability Title
Use-after-free vulnerability in QNetworkAccessManager HTTP/2 support impacts Qt
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free vulnerability in the Qt QNetworkAccessManager HTTP/2 client support of the Qt Network module allows a malicious or compromised HTTP/2 server to cause the client application to crash, affecting availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/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
释放后使用
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-95620
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-95620 (2)
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V. Comments for CVE-2026-95620
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