CVE-2026-116337
Uncontrolled resource consumption vulnerability in HTTP response handling of Qt Network impacts Qt Framework
Uncontrolled resource consumption vulnerability in the Qt Framework HTTP response handling functionality of the Qt Network module.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: QtFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: QtAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Qt Framework qt |
≥ 0; < 4.5.0 (unknown, python) ≥ 4.5.0; < 6.8.10 (affected, python) ≥ 6.9.0; < 6.12.1 (affected, python) Other versions: unaffected |
CNA: Qt |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 0.6 low |
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/R:U/RE:L/U:Green | CNA: Qt |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-116337:CNA: Qt · vendor-advisory
- https://codereview.qt-project.org/c/qt/qtbase/+/774223CNA: Qt · patch
- https://codereview.qt-project.org/c/qt/qtbase/+/774266CNA: Qt · patch
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