# CVE-2026-116337: Qt Framework uncontrolled resource consumption in HTTP response handling

Source: https://junglewise.ai/threats/cve-2026-116337-uncontrolled-resource-consumption-vulnerability-in-the-qt  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

CVE-2026-116337 · Severity: info · Published 2026-11-09

The Qt Framework's Network module contains a flaw in how it handles HTTP responses that can cause excessive consumption of system resources. An attacker could send specially crafted HTTP responses to exhaust memory or CPU, potentially causing an application built with Qt to become unresponsive or crash.

Technologies: [Qt Framework](https://junglewise.ai/threats/technologies/qt-qt-framework). Vendors: [Qt](https://junglewise.ai/threats/vendors/qt).

## Quick answers

**Is CVE-2026-116337 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116337 being exploited in the wild.

**How severe is CVE-2026-116337?** Informational severity, published 9 November 2026.

**Which products and versions are affected?** Qt Framework <UNKNOWN>.

**Is there a fix for CVE-2026-116337?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-116337 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-116337?** Check whether you run Qt Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An uncontrolled resource consumption vulnerability exists in the Qt Network module's HTTP response handling. The flaw allows an attacker to craft HTTP responses that trigger excessive resource usage. Attack requires network access to send malicious responses to a Qt-based application making HTTP requests.

## Affected products

- Qt Qt Framework <UNKNOWN>

## References

- [https://codereview.qt-project.org/c/qt/qtbase/+/774223](https://codereview.qt-project.org/c/qt/qtbase/+/774223)
- [https://codereview.qt-project.org/c/qt/qtbase/+/774266](https://codereview.qt-project.org/c/qt/qtbase/+/774266)

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