CVE-2026-16762
highpriority · track · 0EPSS 0.005 · 44 %ileDEEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-4122Qt Core QXmlStream parser: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-10-22csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Qt Core QXmlStream parser ausnutzen, um einen Denial of Service Angriff durchzuführen.
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
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