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
- 1.0.9~dfsg0-11, 1.0.9~dfsg0-11build1, 1.0.9~dfsg0-12, 1.0.9~dfsg0-4, 1.1.0~dfsg0-1, 1.1.1~dfsg0-3, 1.1.1~dfsg0-5, 1.1.1~dfsg0-5ubuntu1, 1.1.1~dfsg0-6, 1.1.1~dfsg0-7, 1.1.1~dfsg0-7.1, 1.1.1~dfsg0-7.1build1, 2.1.2+dfsg1-4.2build1, 2.1.3+dfsg-1, 2.1.3+dfsg-1.1build2, 2.1.3+dfsg-1.1build3, 2.1.3+dfsg-1.2, 2.1.3+dfsg-1build1, 2.1.3+dfsg-2, 2.5.1+dfsg-1, 2.5.1+dfsg-1build1, 2.5.1+dfsg-4, 2.5.1+dfsg-4build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-42450
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:03 UTC · Revision 1
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:UBUNTU-CVE-2026-42450
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
opencolorio
Fixed versions: Not specified
Complete source record
{
"id": "6904b8c70a598218d1a48144b42e817706539713d06a600a539eaab0ca3153ad",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-42450",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-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:UBUNTU-CVE-2026-42450",
"products": [
{
"name": {
"value": "opencolorio",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.9~dfsg0-4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.9~dfsg0-11",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.9~dfsg0-11build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.9~dfsg0-12",
"evidence": "/affected/1/versions"
},
{
"value": "1.1.0~dfsg0-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.1~dfsg0-3",
"evidence": "/affected/2/versions"
},
{
"value": "1.1.1~dfsg0-5",
"evidence": "/affected/2/versions"
},
{
"value": "1.1.1~dfsg0-5ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "1.1.1~dfsg0-6",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.1~dfsg0-7",
"evidence": "/affected/3/versions"
},
{
"value": "1.1.1~dfsg0-7.1",
"evidence": "/affected/3/versions"
},
{
"value": "1.1.1~dfsg0-7.1build1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.2+dfsg1-4.2build1",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.3+dfsg-1",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.3+dfsg-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.3+dfsg-1.1build2",
"evidence": "/affected/4/versions"
},
{
"value": "2.1.3+dfsg-1.1build3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.3+dfsg-1.2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "2.5.1+dfsg-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "2.5.1+dfsg-4",
"evidence": "/affected/6/versions"
},
{
"value": "2.5.1+dfsg-4build1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "opencolorio",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.3+dfsg-1.2",
"evidence": "/affected/7/versions"
},
{
"value": "2.1.3+dfsg-2",
"evidence": "/affected/7/versions"
},
{
"value": "2.5.1+dfsg-1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-42450",
"aliases": [
"UBUNTU-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"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.0.9~dfsg0-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio1v5",
"binary_version": "1.0.9~dfsg0-4"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "1.0.9~dfsg0-4"
},
{
"binary_name": "python-pyopencolorio",
"binary_version": "1.0.9~dfsg0-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.0.9~dfsg0-11",
"1.0.9~dfsg0-11build1",
"1.0.9~dfsg0-12",
"1.1.0~dfsg0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio1v5",
"binary_version": "1.1.0~dfsg0-1"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "1.1.0~dfsg0-1"
},
{
"binary_name": "python-pyopencolorio",
"binary_version": "1.1.0~dfsg0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.1.1~dfsg0-3",
"1.1.1~dfsg0-5",
"1.1.1~dfsg0-5ubuntu1",
"1.1.1~dfsg0-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio1v5",
"binary_version": "1.1.1~dfsg0-6"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "1.1.1~dfsg0-6"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "1.1.1~dfsg0-6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.1.1~dfsg0-7",
"1.1.1~dfsg0-7.1",
"1.1.1~dfsg0-7.1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio1v5",
"binary_version": "1.1.1~dfsg0-7.1build1"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "1.1.1~dfsg0-7.1build1"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "1.1.1~dfsg0-7.1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"2.1.2+dfsg1-4.2build1",
"2.1.3+dfsg-1",
"2.1.3+dfsg-1build1",
"2.1.3+dfsg-1.1build2",
"2.1.3+dfsg-1.1build3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio2.1t64",
"binary_version": "2.1.3+dfsg-1.1build3"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "2.1.3+dfsg-1.1build3"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "2.1.3+dfsg-1.1build3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"2.1.3+dfsg-1.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio2.1t64",
"binary_version": "2.1.3+dfsg-1.2"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "2.1.3+dfsg-1.2"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "2.1.3+dfsg-1.2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2.5.1+dfsg-1",
"2.5.1+dfsg-1build1",
"2.5.1+dfsg-4",
"2.5.1+dfsg-4build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio2.5",
"binary_version": "2.5.1+dfsg-4build1"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "2.5.1+dfsg-4build1"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "2.5.1+dfsg-4build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2.1.3+dfsg-1.2",
"2.1.3+dfsg-2",
"2.5.1+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42450.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopencolorio2.5",
"binary_version": "2.5.1+dfsg-1"
},
{
"binary_name": "opencolorio-tools",
"binary_version": "2.5.1+dfsg-1"
},
{
"binary_name": "python3-pyopencolorio",
"binary_version": "2.5.1+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:04.914832695Z",
"provider": "osv",
"upstream": [
"CVE-2026-42450"
],
"references": [
"https://ubuntu.com/security/CVE-2026-42450",
"https://www.cve.org/CVERecord?id=CVE-2026-42450",
"https://github.com/AcademySoftwareFoundation/OpenColorIO/security/advisories/GHSA-rxp3-rrgx-f547"
]
},
"related_cves": [
{
"value": "CVE-2026-42450",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360279,
"published_at": "2026-06-24T14:17:00+00:00"
}