UBUNTU-CVE-2026-42450 (CVE-2026-42450)
Vulnerability from osv_ubuntu – Published: 2026-06-24 14:17 – Updated: 2026-06-25 17:14 – Source website
VLAI
Details
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.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@1.0.9~dfsg0-4?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.9~dfsg0-4"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@1.1.0~dfsg0-1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.9~dfsg0-11",
"1.0.9~dfsg0-11build1",
"1.0.9~dfsg0-12",
"1.1.0~dfsg0-1"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@1.1.1~dfsg0-6?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.1~dfsg0-3",
"1.1.1~dfsg0-5",
"1.1.1~dfsg0-5ubuntu1",
"1.1.1~dfsg0-6"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@1.1.1~dfsg0-7.1build1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.1~dfsg0-7",
"1.1.1~dfsg0-7.1",
"1.1.1~dfsg0-7.1build1"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@2.1.3+dfsg-1.1build3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@2.1.3+dfsg-1.2?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.3+dfsg-1.2"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "opencolorio",
"purl": "pkg:deb/ubuntu/opencolorio@2.5.1+dfsg-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.3+dfsg-1.2",
"2.1.3+dfsg-2",
"2.5.1+dfsg-1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2026-42450",
"modified": "2026-06-25T17:14:52Z",
"published": "2026-06-24T14:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-42450"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-42450"
},
{
"type": "REPORT",
"url": "https://github.com/AcademySoftwareFoundation/OpenColorIO/security/advisories/GHSA-rxp3-rrgx-f547"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"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": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-42450"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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