UBUNTU-CVE-2026-42146

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Source
https://ubuntu.com/security/CVE-2026-42146
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-42146
Upstream
Published
2026-05-04T18:16:00Z
Modified
2026-05-20T16:25:43Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

CImg Library is a C++ library for image processing. Prior to commit c3aacf5, the nb_colors field read from the BMP file header is used directly to compute an allocation size without validating it against the remaining file size. A crafted BMP file with a large nb_colors value triggers an out-of-memory condition, crashing any application that uses CImg to load untrusted BMP files. This issue has been patched via commit c3aacf5.

References

Affected packages

Ubuntu:16.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.6.4+dfsg-1build1
1.6.5+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "1.6.5+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:20.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4.5+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "2.4.5+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:25.10
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5.2+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "3.5.2+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:26.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.5.2+dfsg-1
3.5.2+dfsg-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "3.5.2+dfsg-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:Pro:18.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.7.9+dfsg-2
1.7.9+dfsg-2build1
1.7.9+dfsg-2ubuntu0.18.04.1
1.7.9+dfsg-2ubuntu0.18.04.2
1.7.9+dfsg-2ubuntu0.18.04.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "1.7.9+dfsg-2ubuntu0.18.04.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:Pro:22.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.4+dfsg-2
2.9.4+dfsg-3
2.9.4+dfsg-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "2.9.4+dfsg-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"
Ubuntu:Pro:24.04:LTS
cimg

Package

Name
cimg
Purl
pkg:deb/ubuntu/cimg?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.2.1+dfsg-1
3.2.1+dfsg-1ubuntu0.24.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cimg-examples",
            "binary_version": "3.2.1+dfsg-1ubuntu0.24.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42146.json"