ubuntu-cve-2026-55059
Vulnerability from osv_ubuntu
Published
2026-08-25 00:00
Modified
2026-08-27 08:38
Summary
Details
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions prior to 3.2.10, 3.3.12 and 3.4.13 contain a heap out-of-bounds write in Imf_4_0::SampleCountChannel::set(int r, unsigned int newNumSamples[]). The row-based sample-count setter computes the target Y coordinate with dataWindow.min.x instead of dataWindow.min.y. For a valid deep image data window where min.x != min.y, a valid row index can be translated into an invalid Y coordinate, causing writes before the allocated _numSamples buffer. The vulnerability is reachable through the public OpenEXRUtil DeepImage API and can lead to heap corruption and process crashes. This issue has been fixed in versions 3.2.10, 3.3.12 and 3.4.13.
Severity
6.1 (Medium)
6.1 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr22",
"binary_version": "2.2.0-10ubuntu2.6+esm4"
},
{
"binary_name": "openexr",
"binary_version": "2.2.0-10ubuntu2.6+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@2.2.0-10ubuntu2.6+esm4?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0-1ubuntu3",
"2.2.0-7ubuntu1",
"2.2.0-9ubuntu1",
"2.2.0-10ubuntu2",
"2.2.0-10ubuntu2.1",
"2.2.0-10ubuntu2.2",
"2.2.0-10ubuntu2.3",
"2.2.0-10ubuntu2.4",
"2.2.0-10ubuntu2.6",
"2.2.0-10ubuntu2.6+esm1",
"2.2.0-10ubuntu2.6+esm2",
"2.2.0-10ubuntu2.6+esm3",
"2.2.0-10ubuntu2.6+esm4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr22",
"binary_version": "2.2.0-11.1ubuntu1.9+esm1"
},
{
"binary_name": "openexr",
"binary_version": "2.2.0-11.1ubuntu1.9+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@2.2.0-11.1ubuntu1.9+esm1?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0-11ubuntu1",
"2.2.0-11.1ubuntu1",
"2.2.0-11.1ubuntu1.1",
"2.2.0-11.1ubuntu1.2",
"2.2.0-11.1ubuntu1.3",
"2.2.0-11.1ubuntu1.4",
"2.2.0-11.1ubuntu1.6",
"2.2.0-11.1ubuntu1.7",
"2.2.0-11.1ubuntu1.8",
"2.2.0-11.1ubuntu1.9",
"2.2.0-11.1ubuntu1.9+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr24",
"binary_version": "2.3.0-6ubuntu0.5+esm2"
},
{
"binary_name": "openexr",
"binary_version": "2.3.0-6ubuntu0.5+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@2.3.0-6ubuntu0.5+esm2?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.1-4.1ubuntu1",
"2.3.0-6",
"2.3.0-6build1",
"2.3.0-6ubuntu0.1",
"2.3.0-6ubuntu0.2",
"2.3.0-6ubuntu0.3",
"2.3.0-6ubuntu0.5",
"2.3.0-6ubuntu0.5+esm1",
"2.3.0-6ubuntu0.5+esm2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr25",
"binary_version": "2.5.7-1ubuntu0.1~esm2"
},
{
"binary_name": "openexr",
"binary_version": "2.5.7-1ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@2.5.7-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.4-2",
"2.5.7-1",
"2.5.7-1ubuntu0.1~esm1",
"2.5.7-1ubuntu0.1~esm2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr-3-1-30",
"binary_version": "3.1.5-5.1ubuntu0.1~esm1"
},
{
"binary_name": "openexr",
"binary_version": "3.1.5-5.1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@3.1.5-5.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.1.5-5.1",
"3.1.5-5.1build1",
"3.1.5-5.1build2",
"3.1.5-5.1build3",
"3.1.5-5.1ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libopenexr-3-1-30",
"binary_version": "3.1.13-2ubuntu0.26.04.1~esm1"
},
{
"binary_name": "openexr",
"binary_version": "3.1.13-2ubuntu0.26.04.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "openexr",
"purl": "pkg:deb/ubuntu/openexr@3.1.13-2ubuntu0.26.04.1~esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.1.13-2",
"3.1.13-2build1",
"3.1.13-2ubuntu0.26.04.1~esm1"
]
}
],
"aliases": [],
"details": "OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions prior to 3.2.10, 3.3.12 and 3.4.13 contain a heap out-of-bounds write in Imf_4_0::SampleCountChannel::set(int r, unsigned int newNumSamples[]). The row-based sample-count setter computes the target Y coordinate with dataWindow.min.x instead of dataWindow.min.y. For a valid deep image data window where min.x != min.y, a valid row index can be translated into an invalid Y coordinate, causing writes before the allocated _numSamples buffer. The vulnerability is reachable through the public OpenEXRUtil DeepImage API and can lead to heap corruption and process crashes. This issue has been fixed in versions 3.2.10, 3.3.12 and 3.4.13.",
"id": "UBUNTU-CVE-2026-55059",
"modified": "2026-08-27T08:38:38Z",
"published": "2026-08-25T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-55059"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-55059"
},
{
"type": "REPORT",
"url": "https://github.com/academysoftwarefoundation/openexr/security/advisories/ghsa-54cp-3rq6-7mq8"
},
{
"type": "REPORT",
"url": "https://github.com/cveproject/cvelistv5/tree/main/cves/2026/55xxx/cve-2026-55059.json"
},
{
"type": "REPORT",
"url": "https://nvd.nist.gov/vuln/detail/cve-2026-55059"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-55059"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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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.
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.
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