High
Security advisory
QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-15518
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:32 UTC · Revision 1
Source evidence
QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.
osv:CVE-2018-15518
Complete source record
{
"id": "829dd96c6975d1f9546e0a24e7de077661dc5974cd9b7b9d638391ca35a84c40",
"url": "https://osv.dev/vulnerability/CVE-2018-15518",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-15518",
"summary": "QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.",
"evidence": "osv:CVE-2018-15518",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-15518",
"aliases": [
"CVE-2018-15518"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qt/qt5",
"type": "GIT",
"events": [
{
"introduced": "afc1ddcee694c24caf97b76cd629e9163a8787ea"
},
{
"fixed": "1deea3debce6bfd0fd45545b3a8e1de80380a9a5"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.11.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15518.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/qt/qtbase",
"type": "GIT",
"events": [
{
"introduced": "fae33bfbe35f8d082b420ee09662ff60634cb355"
},
{
"fixed": "08de243eaa007597c2bfbc97d3d14e2f821ac4be"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.11.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15518.json"
}
}
],
"modified": "2026-10-24T10:30:40.907282432Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2019/05/msg00014.html",
"https://lists.debian.org/debian-lts-announce/2020/09/msg00023.html",
"https://usn.ubuntu.com/4003-1/",
"https://access.redhat.com/errata/RHSA-2019:2135",
"https://access.redhat.com/errata/RHSA-2019:3390",
"https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/",
"https://lists.debian.org/debian-lts-announce/2019/01/msg00004.html",
"https://www.debian.org/security/2019/dsa-4374",
"https://codereview.qt-project.org/#/c/236691/"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "42.3"
},
{
"last_affected": "42.3"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-15518",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 435042,
"published_at": "2018-12-26T21:29:00.823+00:00"
}