DEBIAN-CVE-2026-42479
An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.
DEBIAN-CVE-2026-42479
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-42479
opencascade
Source reference: /affected/0/package/name
- Affected versions
- 7.6.3+dfsg1-7
Source reference:
/affected/0/versions7.6.3+dfsg1-7.1Source reference:
/affected/0/versions7.7.1+dfsg1-1~exp1Source reference:
/affected/0/versions7.7.1+dfsg1-1~exp2Source reference:
/affected/0/versions7.8.1+dfsg1-1Source reference:
/affected/0/versions7.8.1+dfsg1-1~exp1Source reference:
/affected/0/versions7.8.1+dfsg1-2Source reference:
/affected/0/versions7.8.1+dfsg1-3Source reference:
/affected/0/versions7.8.1+dfsg1-4~exp1Source reference:
/affected/0/versions7.8.1+dfsg1-5Source reference:
/affected/0/versions7.8.1+dfsg1-6Source reference:
/affected/0/versions7.8.1+dfsg1-7Source reference:
/affected/0/versions7.9.1+dfsg-1~exp1Source reference:
/affected/0/versions7.9.1+dfsg-1~exp2Source reference:
/affected/0/versions7.9.2+dfsg-1Source reference:
/affected/0/versions7.9.2+dfsg-2Source reference:
/affected/0/versions7.9.2+dfsg-3Source reference:
/affected/0/versions7.9.2+dfsg-4Source reference:
/affected/0/versions7.9.2+dfsg-5Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
opencascade
Source reference: /affected/1/package/name
- Affected versions
- 7.8.1+dfsg1-3
Source reference:
/affected/1/versions7.8.1+dfsg1-4~exp1Source reference:
/affected/1/versions7.8.1+dfsg1-5Source reference:
/affected/1/versions7.8.1+dfsg1-6Source reference:
/affected/1/versions7.8.1+dfsg1-7Source reference:
/affected/1/versions7.9.1+dfsg-1~exp1Source reference:
/affected/1/versions7.9.1+dfsg-1~exp2Source reference:
/affected/1/versions7.9.2+dfsg-1Source reference:
/affected/1/versions7.9.2+dfsg-2Source reference:
/affected/1/versions7.9.2+dfsg-3Source reference:
/affected/1/versions7.9.2+dfsg-4Source reference:
/affected/1/versions7.9.2+dfsg-5Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
opencascade
Source reference: /affected/2/package/name
- Affected versions
- 7.8.1+dfsg1-3
Source reference:
/affected/2/versions7.8.1+dfsg1-4~exp1Source reference:
/affected/2/versions7.8.1+dfsg1-5Source reference:
/affected/2/versions7.8.1+dfsg1-6Source reference:
/affected/2/versions7.8.1+dfsg1-7Source reference:
/affected/2/versions7.9.1+dfsg-1~exp1Source reference:
/affected/2/versions7.9.1+dfsg-1~exp2Source reference:
/affected/2/versions7.9.2+dfsg-1Source reference:
/affected/2/versions7.9.2+dfsg-2Source reference:
/affected/2/versions7.9.2+dfsg-3Source reference:
/affected/2/versions7.9.2+dfsg-4Source reference:
/affected/2/versions7.9.2+dfsg-5Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencascade",
"purl": "pkg:deb/debian/opencascade?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"7.6.3+dfsg1-7",
"7.6.3+dfsg1-7.1",
"7.7.1+dfsg1-1~exp1",
"7.7.1+dfsg1-1~exp2",
"7.8.1+dfsg1-1",
"7.8.1+dfsg1-1~exp1",
"7.8.1+dfsg1-2",
"7.8.1+dfsg1-3",
"7.8.1+dfsg1-4~exp1",
"7.8.1+dfsg1-5",
"7.8.1+dfsg1-6",
"7.8.1+dfsg1-7",
"7.9.1+dfsg-1~exp1",
"7.9.1+dfsg-1~exp2",
"7.9.2+dfsg-1",
"7.9.2+dfsg-2",
"7.9.2+dfsg-3",
"7.9.2+dfsg-4",
"7.9.2+dfsg-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencascade",
"purl": "pkg:deb/debian/opencascade?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"7.8.1+dfsg1-3",
"7.8.1+dfsg1-4~exp1",
"7.8.1+dfsg1-5",
"7.8.1+dfsg1-6",
"7.8.1+dfsg1-7",
"7.9.1+dfsg-1~exp1",
"7.9.1+dfsg-1~exp2",
"7.9.2+dfsg-1",
"7.9.2+dfsg-2",
"7.9.2+dfsg-3",
"7.9.2+dfsg-4",
"7.9.2+dfsg-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencascade",
"purl": "pkg:deb/debian/opencascade?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"7.8.1+dfsg1-3",
"7.8.1+dfsg1-4~exp1",
"7.8.1+dfsg1-5",
"7.8.1+dfsg1-6",
"7.8.1+dfsg1-7",
"7.9.1+dfsg-1~exp1",
"7.9.1+dfsg-1~exp2",
"7.9.2+dfsg-1",
"7.9.2+dfsg-2",
"7.9.2+dfsg-3",
"7.9.2+dfsg-4",
"7.9.2+dfsg-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56999 · Revision 1
- Added to Heist Feed
- Publisher date