High
opencolorio — security advisory
OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.
- Products
- opencolorio
- Affected versions
- 2.1.2+dfsg1-4, 2.1.2+dfsg1-4.1, 2.1.2+dfsg1-4.2, 2.1.3+dfsg-1, 2.1.3+dfsg-1.1, 2.1.3+dfsg-1.1+loong64, 2.1.3+dfsg-1.1~exp1, 2.1.3+dfsg-1.2, 2.1.3+dfsg-2, 2.5.1+dfsg-1, 2.5.1+dfsg-2, 2.5.1+dfsg-3, 2.5.1+dfsg-4, 2.6.0+dfsg-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-42450
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:31 UTC · Revision 2
Source evidence
OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.
osv:DEBIAN-CVE-2026-42450
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
Complete source record
{
"id": "0a6b10028c26c869f495f3068ed7634296a7c00d528af1c0d29dde32cce528a0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-42450",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-42450",
"summary": "OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.",
"evidence": "osv:DEBIAN-CVE-2026-42450",
"products": [
{
"name": {
"value": "opencolorio",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.2+dfsg1-4",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.2+dfsg1-4.1",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.2+dfsg1-4.2",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-1.1+loong64",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-1.2",
"evidence": "/affected/0/versions"
},
{
"value": "2.1.3+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.5.1+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.5.1+dfsg-3",
"evidence": "/affected/0/versions"
},
{
"value": "2.5.1+dfsg-4",
"evidence": "/affected/0/versions"
},
{
"value": "2.6.0+dfsg-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.3+dfsg-1.2",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.3+dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.5.1+dfsg-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.5.1+dfsg-3",
"evidence": "/affected/1/versions"
},
{
"value": "2.5.1+dfsg-4",
"evidence": "/affected/1/versions"
},
{
"value": "2.6.0+dfsg-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.3+dfsg-1.2",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.3+dfsg-2",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-2",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-3",
"evidence": "/affected/2/versions"
},
{
"value": "2.5.1+dfsg-4",
"evidence": "/affected/2/versions"
},
{
"value": "2.6.0+dfsg-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-42450",
"aliases": [
"DEBIAN-CVE-2026-42450"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/debian/opencolorio?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.1.2+dfsg1-4",
"2.1.2+dfsg1-4.1",
"2.1.2+dfsg1-4.2",
"2.1.3+dfsg-1",
"2.1.3+dfsg-1.1",
"2.1.3+dfsg-1.1+loong64",
"2.1.3+dfsg-1.1~exp1",
"2.1.3+dfsg-1.2",
"2.1.3+dfsg-2",
"2.5.1+dfsg-1",
"2.5.1+dfsg-2",
"2.5.1+dfsg-3",
"2.5.1+dfsg-4",
"2.6.0+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42450.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/debian/opencolorio?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.1.3+dfsg-1.2",
"2.1.3+dfsg-2",
"2.5.1+dfsg-1",
"2.5.1+dfsg-2",
"2.5.1+dfsg-3",
"2.5.1+dfsg-4",
"2.6.0+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42450.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/debian/opencolorio?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.1.3+dfsg-1.2",
"2.1.3+dfsg-2",
"2.5.1+dfsg-1",
"2.5.1+dfsg-2",
"2.5.1+dfsg-3",
"2.5.1+dfsg-4",
"2.6.0+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42450.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:01:10.022249738Z",
"provider": "osv",
"upstream": [
"CVE-2026-42450"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-42450"
]
},
"related_cves": [
{
"value": "CVE-2026-42450",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451137,
"published_at": "2026-06-24T14:17:31.19+00:00"
}