Medium
freecad — security advisory
FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.
- Products
- freecad
- Affected versions
- 0.14.3702+dfsg-4, 0.15.4671+dfsg1-1, 0.15.4671+dfsg1-2, 0.15.4671+dfsg1-3, 0.15.4671+dfsg1-4, 0.16+dfsg2-3, 0.16+dfsg2-3build3, 0.16.6712+dfsg1-1, 0.16.6712+dfsg1-1ubuntu1, 0.16.6712+dfsg1-1ubuntu2, 0.18.3+dfsg1-1, 0.18.3+dfsg1-4, 0.18.4+dfsg1-1, 0.18.4+dfsg1-2, 0.18.4+dfsg1-2ubuntu8, 0.18.4+dfsg1-2~build1, 0.18.4+dfsg2-1ubuntu1, 0.18.4+dfsg2-1ubuntu2, 0.18.4+dfsg2-1ubuntu4, 0.19.1+dfsg1-2, 0.19.2+dfsg1-3, 0.19.2+dfsg1-3ubuntu1, 1.1.1+dfsg-3, 1.1.1+dfsg-3build1, 1.1.3+dfsg-3build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73235
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:30 UTC · Revision 1
Source evidence
FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.
osv:UBUNTU-CVE-2026-73235
freecad
Fixed versions: Not specified
freecad
Fixed versions: Not specified
freecad
Fixed versions: Not specified
freecad
Fixed versions: Not specified
freecad
Fixed versions: Not specified
Complete source record
{
"id": "7c4338d819e892c5b08dac9f099137526fc9367639d41ea84652e57f4b184482",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-73235",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-73235",
"summary": "FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.",
"evidence": "osv:UBUNTU-CVE-2026-73235",
"products": [
{
"name": {
"value": "freecad",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.14.3702+dfsg-4",
"evidence": "/affected/0/versions"
},
{
"value": "0.15.4671+dfsg1-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.15.4671+dfsg1-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.15.4671+dfsg1-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.15.4671+dfsg1-4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "freecad",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.16+dfsg2-3",
"evidence": "/affected/1/versions"
},
{
"value": "0.16+dfsg2-3build3",
"evidence": "/affected/1/versions"
},
{
"value": "0.16.6712+dfsg1-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.16.6712+dfsg1-1ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "0.16.6712+dfsg1-1ubuntu2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "freecad",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.18.3+dfsg1-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.3+dfsg1-4",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg1-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg1-2~build1",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg1-2",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg1-2ubuntu8",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg2-1ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg2-1ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "0.18.4+dfsg2-1ubuntu4",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "freecad",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.19.1+dfsg1-2",
"evidence": "/affected/3/versions"
},
{
"value": "0.19.2+dfsg1-3",
"evidence": "/affected/3/versions"
},
{
"value": "0.19.2+dfsg1-3ubuntu1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "freecad",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.1+dfsg-3",
"evidence": "/affected/4/versions"
},
{
"value": "1.1.1+dfsg-3build1",
"evidence": "/affected/4/versions"
},
{
"value": "1.1.3+dfsg-3build1",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-73235",
"aliases": [
"UBUNTU-CVE-2026-73235"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "freecad",
"purl": "pkg:deb/ubuntu/freecad?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.14.3702+dfsg-4",
"0.15.4671+dfsg1-1",
"0.15.4671+dfsg1-2",
"0.15.4671+dfsg1-3",
"0.15.4671+dfsg1-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73235.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freecad",
"binary_version": "0.15.4671+dfsg1-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "freecad",
"purl": "pkg:deb/ubuntu/freecad?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"0.16+dfsg2-3",
"0.16+dfsg2-3build3",
"0.16.6712+dfsg1-1",
"0.16.6712+dfsg1-1ubuntu1",
"0.16.6712+dfsg1-1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73235.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freecad",
"binary_version": "0.16.6712+dfsg1-1ubuntu2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "freecad",
"purl": "pkg:deb/ubuntu/freecad?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"0.18.3+dfsg1-1",
"0.18.3+dfsg1-4",
"0.18.4+dfsg1-1",
"0.18.4+dfsg1-2~build1",
"0.18.4+dfsg1-2",
"0.18.4+dfsg1-2ubuntu8",
"0.18.4+dfsg2-1ubuntu1",
"0.18.4+dfsg2-1ubuntu2",
"0.18.4+dfsg2-1ubuntu4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73235.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freecad",
"binary_version": "0.18.4+dfsg2-1ubuntu4"
},
{
"binary_name": "freecad-common",
"binary_version": "0.18.4+dfsg2-1ubuntu4"
},
{
"binary_name": "freecad-python3",
"binary_version": "0.18.4+dfsg2-1ubuntu4"
},
{
"binary_name": "freecad-runtime",
"binary_version": "0.18.4+dfsg2-1ubuntu4"
},
{
"binary_name": "libfreecad-python3-0.18",
"binary_version": "0.18.4+dfsg2-1ubuntu4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "freecad",
"purl": "pkg:deb/ubuntu/freecad?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.19.1+dfsg1-2",
"0.19.2+dfsg1-3",
"0.19.2+dfsg1-3ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73235.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freecad",
"binary_version": "0.19.2+dfsg1-3ubuntu1"
},
{
"binary_name": "freecad-common",
"binary_version": "0.19.2+dfsg1-3ubuntu1"
},
{
"binary_name": "freecad-python3",
"binary_version": "0.19.2+dfsg1-3ubuntu1"
},
{
"binary_name": "libfreecad-python3-0.19",
"binary_version": "0.19.2+dfsg1-3ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "freecad",
"purl": "pkg:deb/ubuntu/freecad?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.1.1+dfsg-3",
"1.1.1+dfsg-3build1",
"1.1.3+dfsg-3build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73235.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freecad",
"binary_version": "1.1.3+dfsg-3build1"
},
{
"binary_name": "freecad-common",
"binary_version": "1.1.3+dfsg-3build1"
},
{
"binary_name": "freecad-python3",
"binary_version": "1.1.3+dfsg-3build1"
},
{
"binary_name": "libfreecad-python3",
"binary_version": "1.1.3+dfsg-3build1"
}
]
}
}
],
"modified": "2026-10-17T12:55:30.698742642Z",
"provider": "osv",
"upstream": [
"CVE-2026-73235"
],
"references": [
"https://ubuntu.com/security/CVE-2026-73235",
"https://www.cve.org/CVERecord?id=CVE-2026-73235",
"https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49",
"https://github.com/FreeCAD/FreeCAD/pull/31280"
]
},
"related_cves": [
{
"value": "CVE-2026-73235",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353842,
"published_at": "2026-08-11T20:18:00+00:00"
}