CVE Details
Basic Information
| Title | Use after free in QHttp2ProtocolHandler |
|---|---|
| Type | cve |
| Published | 2025-06-11T07:33:41.071Z |
| Last Seen |
Product Information
| Vendor | The Qt Company |
|---|---|
| Product | Qt |
| Version | 0 |
CVSS Information
| Base Score | 2.1 (LOW) |
|---|---|
| Attack Vector | CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L |
| Confidentiality Impact | |
| Integrity Impact | |
| Availability Impact |
AI Analysis
| AI Description | A Use After Free vulnerability exists in Qt’s QHttp2ProtocolHandler affecting only HTTP/2 handling. The issue is due to a race condition in how QHttp2Stream uploads POST request bodies and handles HTTP error responses. This vulnerability is specific to Qt 6.9.0 and has been resolved in Qt 6.9.1. |
|---|---|
| AI Severity | Low |
| Vendor | The Qt Company |
| Product | Qt |
| Affected Version | 6.9.0 |
Affected Products
- The Qt Company Qt 6.9.0
Additional Information
| CVE List | |
|---|---|
| CWE List | CWE-416 |
| Bulletin Family |
Description
There is a “Use After Free” vulnerability in Qt’s QHttp2ProtocolHandler in the QtNetwork module. This only affects HTTP/2 handling, HTTP handling is not affected by this at all. This happens due to a race condition between how QHttp2Stream uploads the body of a
POST request and the simultaneous handling of HTTP error responses.
POST request and the simultaneous handling of HTTP error responses.
This issue only affects Qt 6.9.0 and has been fixed for Qt 6.9.1.