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

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-2ae512a6d5 advisory.

    Fix CVE-2026-19248, denial of Service vulnerability in XML parsing


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

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

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2119:03 advisory.

    * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML     serialization (CVE-2026-11573)
      * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:87082 advisory.

    * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML     serialization (CVE-2026-11573)

    * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

Tenable has extracted the preceding description block directly from the RockyLinux 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 remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:87082 advisory.

    * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML     serialization (CVE-2026-11573)
      * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_87082 advisory.

    * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML     serialization (CVE-2026-11573)

    * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

Tenable has extracted the preceding description block directly from the CIQ 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 remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-87082 advisory.

    - Fix CVE-2026-19248: unbounded recursion and O(N2) behavior in QDom       Resolves: RHEL-261136

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:87082 advisory.

    Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string,     xml, and network handling in Qt.

    Security Fix(es):

    * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML     serialization (CVE-2026-11573)

    * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d615eb3f43 advisory.

    Fix CVE-2026-19248, denial of Service vulnerability in XML parsing


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

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

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-9214dd114c advisory.

    Fix CVE-2026-19248, denial of Service vulnerability in XML parsing


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

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

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
374691	Fedora 45 : qt5-qtbase (2026-2ae512a6d5)	Nessus	Fedora Local Security Checks	Local	high
371404	MiracleLinux 9 : qt5-qtbase-5.15.9-11.el9_8.2 (AXSA:2026-2119:03)	Nessus	Miracle Linux Local Security Checks	Local	high
371130	RockyLinux 9 : qt5-qtbase (RLSA-2026:87082)	Nessus	Rocky Linux Local Security Checks	Local	high
370468	AlmaLinux 9 : qt5-qtbase (ALSA-2026:87082)	Nessus	Alma Linux Local Security Checks	Local	high
370315	Rocky Linux 9 [CIQ] Security Update: qt5-qtbase / qt5-qtbase-common / qt5-qtbase-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_87082)	Nessus	Rocky Linux Local Security Checks	Local	high
370310	Oracle Linux 9 : qt5-qtbase (ELSA-2026-87082)	Nessus	Oracle Linux Local Security Checks	Local	high
370134	RHEL 9 : qt5-qtbase (RHSA-2026:87082)	Nessus	Red Hat Local Security Checks	Local	high
367730	Fedora 43 : qt5-qtbase (2026-d615eb3f43)	Nessus	Fedora Local Security Checks	Local	high
366627	Fedora 44 : qt5-qtbase (2026-9214dd114c)	Nessus	Fedora Local Security Checks	Local	high
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

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high

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high