Medium
opencascade — security advisory
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.
- Products
- opencascade
- Affected versions
- 7.3.3+dfsg1-1, 7.3.3+dfsg1-1build1, 7.5.1+dfsg1-2, 7.5.1+dfsg1-2ubuntu1, 7.6.3+dfsg1-7, 7.6.3+dfsg1-7.1, 7.6.3+dfsg1-7.1build1, 7.8.1+dfsg1-3, 7.9.2+dfsg-2, 7.9.2+dfsg-3, 7.9.2+dfsg-4, 7.9.2+dfsg-4build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-42479
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:03 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-42479
opencascade
Fixed versions: Not specified
opencascade
Fixed versions: Not specified
opencascade
Fixed versions: Not specified
opencascade
Fixed versions: Not specified
opencascade
Fixed versions: Not specified
opencascade
Fixed versions: Not specified
Complete source record
{
"id": "70db6abf1c56ec36c311ecb4bc1e6e77b4ee86278aef8ad5c0d29420be299681",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-42479",
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],
"modified": "2026-10-17T13:00:05.037694702Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-42479",
"https://www.cve.org/CVERecord?id=CVE-2026-42479",
"https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a"
]
},
"related_cves": [
{
"value": "CVE-2026-42479",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360281,
"published_at": "2026-05-01T15:16:00+00:00"
}