UBUNTU-CVE-2026-66759 (CVE-2026-66759)
Vulnerability from osv_ubuntu – Published: 2026-07-27 19:17 – Updated: 2026-08-10 12:37 – Source website
VLAI
Details
A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.
Severity
7.1 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "2.8.16-1ubuntu1.1+esm3"
},
{
"binary_name": "gimp-data",
"binary_version": "2.8.16-1ubuntu1.1+esm3"
},
{
"binary_name": "libgimp2.0",
"binary_version": "2.8.16-1ubuntu1.1+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@2.8.16-1ubuntu1.1+esm3?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.8.14-1ubuntu2",
"2.8.14-1.2ubuntu1",
"2.8.16-1ubuntu1",
"2.8.16-1ubuntu1.1",
"2.8.16-1ubuntu1.1+esm1",
"2.8.16-1ubuntu1.1+esm2",
"2.8.16-1ubuntu1.1+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "2.8.22-1ubuntu0.1~esm3"
},
{
"binary_name": "gimp-data",
"binary_version": "2.8.22-1ubuntu0.1~esm3"
},
{
"binary_name": "libgimp2.0",
"binary_version": "2.8.22-1ubuntu0.1~esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@2.8.22-1ubuntu0.1~esm3?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.8.20-1",
"2.8.20-1.1",
"2.8.20-2",
"2.8.22-1",
"2.8.22-1ubuntu0.1~esm1",
"2.8.22-1ubuntu0.1~esm2",
"2.8.22-1ubuntu0.1~esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "2.10.18-1ubuntu0.1+esm3"
},
{
"binary_name": "gimp-data",
"binary_version": "2.10.18-1ubuntu0.1+esm3"
},
{
"binary_name": "libgimp2.0",
"binary_version": "2.10.18-1ubuntu0.1+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@2.10.18-1ubuntu0.1+esm3?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.8-2",
"2.10.14-2",
"2.10.14-2build1",
"2.10.14-2ubuntu1",
"2.10.14-3",
"2.10.18-1",
"2.10.18-1ubuntu0.1",
"2.10.18-1ubuntu0.1+esm1",
"2.10.18-1ubuntu0.1+esm2",
"2.10.18-1ubuntu0.1+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "2.10.30-1ubuntu0.1+esm3"
},
{
"binary_name": "gimp-data",
"binary_version": "2.10.30-1ubuntu0.1+esm3"
},
{
"binary_name": "libgimp2.0",
"binary_version": "2.10.30-1ubuntu0.1+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@2.10.30-1ubuntu0.1+esm3?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.24-2",
"2.10.28-1",
"2.10.30-1",
"2.10.30-1build1",
"2.10.30-1ubuntu0.1",
"2.10.30-1ubuntu0.1+esm1",
"2.10.30-1ubuntu0.1+esm2",
"2.10.30-1ubuntu0.1+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
},
{
"binary_name": "gimp-data",
"binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
},
{
"binary_name": "libgimp2.0t64",
"binary_version": "2.10.36-3ubuntu0.24.04.1+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@2.10.36-3ubuntu0.24.04.1+esm3?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.34-1",
"2.10.36-1",
"2.10.36-2",
"2.10.36-3build2",
"2.10.36-3build3",
"2.10.36-3ubuntu0.24.04.1",
"2.10.36-3ubuntu0.24.04.1+esm1",
"2.10.36-3ubuntu0.24.04.1+esm2",
"2.10.36-3ubuntu0.24.04.1+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gimp",
"binary_version": "3.2.2-1ubuntu0.26.04.1"
},
{
"binary_name": "gimp-data",
"binary_version": "3.2.2-1ubuntu0.26.04.1"
},
{
"binary_name": "gir1.2-gimp-3.0",
"binary_version": "3.2.2-1ubuntu0.26.04.1"
},
{
"binary_name": "libgimp-3.0-0",
"binary_version": "3.2.2-1ubuntu0.26.04.1"
},
{
"binary_name": "libgimp-3.0-bin",
"binary_version": "3.2.2-1ubuntu0.26.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "gimp",
"purl": "pkg:deb/ubuntu/gimp@3.2.2-1ubuntu0.26.04.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.4-6.1",
"3.0.4-6.2",
"3.0.6-1",
"3.2.0~RC2-2",
"3.2.0~RC2-3",
"3.2.0~RC2-3.1",
"3.2.0~RC2-3.2",
"3.2.0~RC2-3.3",
"3.2.0~RC3-1",
"3.2.0-1",
"3.2.2-1",
"3.2.2-1ubuntu0.26.04.1"
]
}
],
"aliases": [],
"details": "A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.",
"id": "UBUNTU-CVE-2026-66759",
"modified": "2026-08-10T12:37:00Z",
"published": "2026-07-27T19:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-66759"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-66759"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/gimp/-/issues/16528"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-66759"
]
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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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.
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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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