CVE-2026-8168 (GCVE-0-2026-8168)
Vulnerability from cvelistv5
Published
2026-10-19 13:08
Modified
2026-10-19 14:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-8168",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-19T14:27:04.849301Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T14:27:15.747Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
"cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"qtsvg"
],
"product": "qt",
"vendor": "qt",
"versions": [
{
"lessThan": "6.8.9",
"status": "affected",
"version": "4.1.0",
"versionType": "python"
},
{
"lessThan": "6.11.2",
"status": "affected",
"version": "6.9.0",
"versionType": "python"
},
{
"lessThan": "4.1.0",
"status": "unknown",
"version": "0",
"versionType": "python"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.9",
"versionStartIncluding": "4.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.2",
"versionStartIncluding": "6.9.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.9",
"versionStartIncluding": "4.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.2",
"versionStartIncluding": "6.9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eUncontrolled recursion in the SVG parser and renderer of the Qt SVG module (\u003ccode\u003eQtSvg\u003c/code\u003e) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.\u003c/p\u003e"
}
],
"value": "Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements."
}
],
"impacts": [
{
"capecId": "CAPEC-230",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-230 Serialized Data with Nested Payloads"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "CWE-674 Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T13:08:14.544Z",
"orgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
"shortName": "Qt"
},
"references": [
{
"name": "Propagate QSvgExtraStates variables to pattern and mask elements",
"tags": [
"vendor-advisory"
],
"url": "https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-8168:"
},
{
"name": "Fix rendering causing stack overflow",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730591"
},
{
"name": "Fix resolving paint servers going through stack overflow",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730501"
},
{
"name": "Fix stack overflow caused by recursive calls of destructors",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/731257"
},
{
"name": "Add a test for deeply nested SVG files",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730892"
},
{
"name": "Add baseline test for deeply nested elements",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/733245"
},
{
"name": "Speed up QSvgStructureNode::releaseDescendants()",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/738811"
},
{
"name": "Fix stack overflow in detectCycles",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/730590"
},
{
"name": "Use bottom tested loop in detectCycles()",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/743488"
},
{
"name": "Apply and revert styles iteratively",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/748966"
},
{
"name": "Propagate QSvgExtraStates variables to pattern and mask elements",
"tags": [
"patch"
],
"url": "https://codereview.qt-project.org/c/qt/qtsvg/+/756512"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Denial-of-service vulnerability in the SVG parser and renderer impacts Qt",
"x_generator": {
"engine": "Claude AI (Opus 5.5) \u2014 draft only, requires human validation before submission"
}
}
},
"cveMetadata": {
"assignerOrgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
"assignerShortName": "Qt",
"cveId": "CVE-2026-8168",
"datePublished": "2026-10-19T13:08:14.544Z",
"dateReserved": "2026-05-08T12:42:35.026Z",
"dateUpdated": "2026-10-19T14:27:15.747Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-8168\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-19T14:27:04.849301Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-19T14:27:11.146Z\"}}], \"cna\": {\"title\": \"Denial-of-service vulnerability in the SVG parser and renderer impacts Qt\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"impacts\": [{\"capecId\": \"CAPEC-230\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-230 Serialized Data with Nested Payloads\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 7.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"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\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*\", \"cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*\"], \"vendor\": \"qt\", \"modules\": [\"qtsvg\"], \"product\": \"qt\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.1.0\", \"lessThan\": \"6.8.9\", \"versionType\": \"python\"}, {\"status\": \"affected\", \"version\": \"6.9.0\", \"lessThan\": \"6.11.2\", \"versionType\": \"python\"}, {\"status\": \"unknown\", \"version\": \"0\", \"lessThan\": \"4.1.0\", \"versionType\": \"python\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-8168:\", \"name\": \"Propagate QSvgExtraStates variables to pattern and mask elements\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/730591\", \"name\": \"Fix rendering causing stack overflow\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/730501\", \"name\": \"Fix resolving paint servers going through stack overflow\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/731257\", \"name\": \"Fix stack overflow caused by recursive calls of destructors\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/730892\", \"name\": \"Add a test for deeply nested SVG files\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/733245\", \"name\": \"Add baseline test for deeply nested elements\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/738811\", \"name\": \"Speed up QSvgStructureNode::releaseDescendants()\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/730590\", \"name\": \"Fix stack overflow in detectCycles\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/743488\", \"name\": \"Use bottom tested loop in detectCycles()\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/748966\", \"name\": \"Apply and revert styles iteratively\", \"tags\": [\"patch\"]}, {\"url\": \"https://codereview.qt-project.org/c/qt/qtsvg/+/756512\", \"name\": \"Propagate QSvgExtraStates variables to pattern and mask elements\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Claude AI (Opus 5.5) \\u2014 draft only, requires human validation before submission\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eUncontrolled recursion in the SVG parser and renderer of the Qt SVG module (\u003ccode\u003eQtSvg\u003c/code\u003e) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-674\", \"description\": \"CWE-674 Uncontrolled Recursion\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.9\", \"versionStartIncluding\": \"4.1.0\"}, {\"criteria\": \"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.2\", \"versionStartIncluding\": \"6.9.0\"}, {\"criteria\": \"cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.9\", \"versionStartIncluding\": \"4.1.0\"}, {\"criteria\": \"cpe:2.3:a:qt:qtsvg:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.2\", \"versionStartIncluding\": \"6.9.0\"}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"a59d8014-47c4-4630-ab43-e1b13cbe58e3\", \"shortName\": \"Qt\", \"dateUpdated\": \"2026-10-19T13:08:14.544Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-8168\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-19T14:27:15.747Z\", \"dateReserved\": \"2026-05-08T12:42:35.026Z\", \"assignerOrgId\": \"a59d8014-47c4-4630-ab43-e1b13cbe58e3\", \"datePublished\": \"2026-10-19T13:08:14.544Z\", \"assignerShortName\": \"Qt\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…