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CVE-2026-96432low2.1

Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

Impact

A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.

Source excerpt · Qt

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

qt · qt

Other versions: unaffected

Version / rangeSource status
6.8.0 through 6.8.9 (inclusive)affected
6.9.0 through 6.11.2 (inclusive)affected
Qt version evidence

Original source description

A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.

References