CVE-2026-16762 Affecting qtbase-opensource-src package, versions <5.15.15+dfsg-6+e7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Oct 2026
- disclosed23 Oct 2026
Introduced: 23 Oct 2026
NewCVE-2026-16762 (opens in a new tab)How to fix?
Upgrade Echo:latest qtbase-opensource-src to version 5.15.15+dfsg-6+e7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qtbase-opensource-src package and not the qtbase-opensource-src package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause disproportionate CPU consumption during parsing, making the application unresponsive (denial of service). Exploitation requires only that the application parse attacker-influenced XML; no authentication, privileges, or user interaction beyond ingesting the input are needed. There is no loss of confidentiality or integrity — no data disclosure, data modification, or code execution — and the impact is contained to the affected process.