CVE ID : CVE-2025-5991
Published : June 11, 2025, 8:15 a.m. | 43 minutes ago
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.
Severity: 0.0 | NA
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