CVE-2026-96432

Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

Published Oct 26, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
First Time appeared Qt
Qt qt
Qt qtbase
Weaknesses CWE-476
CPEs cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
Vendors & Products Qt
Qt qt
Qt qtbase
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/RE:L/U:Green'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Qt
Published
Updated
Oct 26, 2026, 2:35 PM
Reserved
Sep 23, 2026, 6:49 AM
Status
Awaiting Analysis
Published
Oct 26, 2026, 12:17 PM
Modified
Oct 26, 2026, 6:39 PM