{"id":"CVE-2026-11573","aliases":["ALSA-2026:87082","ALSA-2026:93924","AZL-100947","DEBIAN-CVE-2026-11573","EUVD-2026-72717","GHSA-m72v-p257-4w4p","OESA-2026-4495","OESA-2026-4496","OESA-2026-4612","RHSA-2026:74653","RHSA-2026:84582","RLSA-2026:87082","RLSA-2026:93924","UBUNTU-CVE-2026-11573"],"status":"published","title":"Uncontrolled recursion in QDomDocument/QDomNode serialization causes stack exhaustion (QtXml)","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00387,"percentile":0.33144,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-674"],"published":"2026-09-08T12:06:08Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Azure 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qt company","product":"qt"}],"references":[{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/606899","tags":["patch","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11573","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-m72v-p257-4w4p"},{"url":"https://access.redhat.com/errata/RHSA-2026:87082","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-11573","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-19248","tags":["report"]},{"url":"https://bugzilla.redhat.com/2529762","tags":["report"]},{"url":"https://bugzilla.redhat.com/2535011","tags":["report"]},{"url":"https://errata.almalinux.org/9/ALSA-2026-87082.html","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:93924","tags":["advisory"]},{"url":"https://errata.almalinux.org/8/ALSA-2026-93924.html","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-11573","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4495","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4496","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4612","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:74653","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_74653.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2529762","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-11573","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2026:84582","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84582.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:87082","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535011","tags":["report"]},{"url":"https://errata.rockylinux.org/RLSA-2026:93924","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-11573","tags":["report"]},{"url":"https://github.com/qt/qtbase/commit/387633a6069a5e0e9b976971691b1b82725b6132","tags":["report"]},{"url":"https://github.com/qt/qtbase/commit/948599e7b71f59fd9c9c0f7f3d1987ec93a23490","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-11573","title":"Uncontrolled recursion in QDomDocument/QDomNode serialization causes stack exhaustion (QtXml)","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T12:06:08.617Z","modified":"2026-09-11T09:31:34.532Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:20:04.809935Z"}],"euvd":[{"id":"EUVD-2026-72717","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T12:06:08Z","modified":"2026-09-11T09:31:34Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:22.994693Z"}],"ghsa":[{"id":"GHSA-m72v-p257-4w4p","title":"Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted...","description":"Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the app via stack exhaustion (DoS only).","status":"published","published":"2026-09-08T15:31:53Z","modified":"2026-09-08T15:31:54Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T15:11:28.397774Z"}],"nvd":[{"id":"CVE-2026-11573","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T13:17:17.007Z","modified":"2026-09-11T10:16:50.5Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:12:44.436435Z"}],"osv":[{"id":"DEBIAN-CVE-2026-11573","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T13:17:17.007Z","modified":"2026-10-01T03:01:44.527971809Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"updated_at":"2026-11-02T15:45:50.923612Z"},{"id":"OESA-2026-4495","title":"qt6-qtbase security update","description":"Qt is a software toolkit for developing applications.\r\n\r\nSecurity Fix(es):\n\nUncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u0026lt;\u0026lt;(QTextStream\u0026amp;, const QDomNode\u0026amp;). Denial of service only — no code execution and no memory disclosure.(CVE-2026-11573)","status":"published","published":"2026-10-22T14:35:49Z","modified":"2026-10-22T14:45:03.532764889Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T15:52:47.981622Z"},{"id":"OESA-2026-4496","title":"qt6-qtbase security update","description":"Qt is a software toolkit for developing applications.\r\n\r\nSecurity Fix(es):\n\nUncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u0026lt;\u0026lt;(QTextStream\u0026amp;, const QDomNode\u0026amp;). Denial of service only — no code execution and no memory disclosure.(CVE-2026-11573)","status":"published","published":"2026-10-22T14:35:49Z","modified":"2026-10-22T14:45:11.096257674Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T15:52:47.981622Z"},{"id":"OESA-2026-4612","title":"qt6-qtbase security update","description":"Qt is a software toolkit for developing applications.\r\n\r\nSecurity Fix(es):\n\nUncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u0026lt;\u0026lt;(QTextStream\u0026amp;, const QDomNode\u0026amp;). Denial of service only — no code execution and no memory disclosure.(CVE-2026-11573)","status":"published","published":"2026-10-29T09:03:34Z","modified":"2026-10-29T09:15:39.429611803Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T15:52:47.981622Z"},{"id":"RHSA-2026:74653","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-10-10T10:21:29Z","modified":"2026-10-19T10:06:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:84582","title":"Red Hat Security Advisory: qt6-qtbase security update","status":"published","published":"2026-10-19T10:08:00Z","modified":"2026-10-19T10:16:03.058512378Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.547034Z"},{"id":"RLSA-2026:87082","title":"Important: qt5-qtbase security update","description":"Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt. \n\nSecurity Fix(es):\n\n* qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573)\n\n* qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)\n\nFor 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.","status":"published","published":"2026-10-22T00:04:07.745746Z","modified":"2026-10-22T00:30:04.404110078Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.76659Z"},{"id":"RLSA-2026:93924","title":"Important: qt5-qtbase security update","description":"Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt. \n\nSecurity Fix(es):\n\n* qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573)\n\n* qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)\n\nFor 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.","status":"published","published":"2026-11-03T12:01:33.643841Z","modified":"2026-11-03T12:30:03.476157659Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T13:02:16.068655Z"},{"id":"UBUNTU-CVE-2026-11573","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T13:17:00Z","modified":"2026-10-17T12:58:04.616579017Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T16:56:00.081948Z"},{"id":"ALSA-2026:87082","title":"Important: qt5-qtbase security update","description":"Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt.   \n\nSecurity Fix(es):  \n\n  * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573)\n  * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)\n\n\nFor 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.\n","status":"published","published":"2026-10-21T00:00:00Z","modified":"2026-10-29T11:32:38.511037082Z","updated_at":"2026-11-02T15:27:57.367731Z"},{"id":"ALSA-2026:93924","title":"Important: qt5-qtbase security update","description":"Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt.   \n\nSecurity Fix(es):  \n\n  * qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573)\n  * qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)\n\n\nFor 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.\n","status":"published","published":"2026-11-02T00:00:00Z","modified":"2026-11-03T12:15:02.396865754Z","updated_at":"2026-11-03T12:31:37.107381Z"},{"id":"AZL-100947","title":"CVE-2026-11573 affecting package qtbase for versions less than 6.6.3-6","description":"Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator\u003c\u003c(QTextStream\u0026, const QDomNode\u0026). Denial of service only — no code execution and no memory disclosure.","status":"published","published":"2026-09-08T13:17:17Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:17.128158Z"}]}}