CVE-2026-79616: Qt Quick out-of-bounds read in SVG path parsing

CVE-2026-79616 · Severity: info · Published 2026-09-23

Qt Quick is a graphical framework used in applications to render user interfaces. An out-of-bounds memory read vulnerability exists in the SVG path parsing code when processing untrusted SVG path strings. While the direct impact is limited to information disclosure from memory, this could potentially be leveraged in combination with other vulnerabilities or in specific application contexts.

Vendors: Qt.

Quick answers

Is CVE-2026-79616 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-79616 being exploited in the wild.
How severe is CVE-2026-79616?
Informational severity, published 23 September 2026.
Which products and versions are affected?
Qt Quick <UNKNOWN>.
Is there a fix for CVE-2026-79616?
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-2026-79616 attacked?
It is attacked over the network.
Am I affected by CVE-2026-79616?
Check whether you run Qt Quick 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 out-of-bounds read vulnerability exists in Qt Quick's Context2D.path and PathSvg.path components during SVG path string parsing. The vulnerability occurs when untrusted SVG path data is processed without proper bounds validation. An attacker can craft a malicious SVG path string to trigger a read beyond allocated buffer boundaries, potentially reading sensitive data from application memory.

Affected products

  • Qt Qt Quick <UNKNOWN>

Timeline

  • 2026-09-23: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.