CVE-2025-5991

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. This issue only affects Qt 6.9.0 and has been fixed for Qt 6.9.1.

CVSS

No CVSS.

References

Link	Resource
https://codereview.qt-project.org/c/qt/qtbase/+/643777

Configurations

No configuration.

History

12 Jun 2025, 16:06

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-11 08:15

Updated : 2025-06-12 16:06

NVD link : CVE-2025-5991

Mitre link : CVE-2025-5991

CVE.ORG link : CVE-2025-5991

JSON object : View

Products Affected

No product.

CWE

CWE-416

Use After Free

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CVE-2025-5991

JSON object

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