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.
Metrics
Affected Vendors & Products
References
History
Thu, 12 Jun 2025 15:15:00 +0000
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threat_severity
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cvssV3_1
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Wed, 11 Jun 2025 14:15:00 +0000
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ssvc
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Wed, 11 Jun 2025 07:45:00 +0000
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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. This issue only affects Qt 6.9.0 and has been fixed for Qt 6.9.1. | |
Title | Use after free in QHttp2ProtocolHandler | |
Weaknesses | CWE-416 | |
References |
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Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: TQtC
Published: 2025-06-11T07:33:41.071Z
Updated: 2025-06-11T13:18:09.662Z
Reserved: 2025-06-11T06:08:23.434Z
Link: CVE-2025-5991

Updated: 2025-06-11T13:18:05.881Z

Status : Awaiting Analysis
Published: 2025-06-11T08:15:22.933
Modified: 2025-06-12T16:06:20.180
Link: CVE-2025-5991
