QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing
    untrusted input. (CVE-2026-19248)

The version of qt5-qtbase installed on the remote host is prior to 5.15.3-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3951 advisory.

    Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash     the app via stack exhaustion (DoS only). (CVE-2026-11573)

    QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing     untrusted input. (CVE-2026-19248)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing     untrusted input. (CVE-2026-19248)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
472795	Echo: qtbase-opensource-src: security update to 5.15.15+dfsg-6+e5	Tenable Cloud Security	Echo Local Security Checks	Local	high
472795	Echo: qtbase-opensource-src: security update to 5.15.15+dfsg-6+e5	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
351039	Amazon Linux 2 : qt5-qtbase (ALAS-2026-3951)	Nessus	Amazon Linux Local Security Checks	Local	high
349283	Linux Distros Unpatched Vulnerability : CVE-2026-19248	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-19248

high

Tenable Plugins

high

high

high

high