UBUNTU-CVE-2026-122056

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Source
https://ubuntu.com/security/CVE-2026-122056
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-122056
Upstream
  • CVE-2026-122056
Published
2026-11-10T00:00:00Z
Modified
2026-11-11T09:39:20Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in OpenSCAP. A heap-based buffer overflow can occur when processing a specially crafted Extensible Configuration Checklist Description Format (XCCDF) document using the sds-compose option. An attacker could exploit this vulnerability to corrupt memory, resulting in an application crash and a Denial of Service (DoS).

References

Affected packages

Ubuntu:18.04:LTS
openscap

Package

Name
openscap
Purl
pkg:deb/ubuntu/openscap?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.2.14-1build1
1.2.15-1
1.2.15-1build1
1.2.15-1ubuntu0.1
1.2.15-1ubuntu0.2
1.2.15-1ubuntu0.3
1.2.15-1ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.2.15-1ubuntu0.4"
        },
        {
            "binary_name": "libopenscap8",
            "binary_version": "1.2.15-1ubuntu0.4"
        },
        {
            "binary_name": "python-openscap",
            "binary_version": "1.2.15-1ubuntu0.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:20.04:LTS
openscap

Package

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

Affected ranges

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

Affected versions

1.*
1.2.16-2ubuntu1
1.2.16-2ubuntu2
1.2.16-2ubuntu3
1.2.16-2ubuntu3.1
1.2.16-2ubuntu3.2
1.2.16-2ubuntu3.3
1.2.16-2ubuntu3.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.2.16-2ubuntu3.4"
        },
        {
            "binary_name": "libopenscap8",
            "binary_version": "1.2.16-2ubuntu3.4"
        },
        {
            "binary_name": "python-openscap",
            "binary_version": "1.2.16-2ubuntu3.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:22.04:LTS
openscap

Package

Name
openscap
Purl
pkg:deb/ubuntu/openscap?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.2.17-0.1ubuntu5
1.2.17-0.1ubuntu7
1.2.17-0.1ubuntu7.22.04.1
1.2.17-0.1ubuntu7.22.04.2
1.2.17-0.1ubuntu7.22.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.2.17-0.1ubuntu7.22.04.3"
        },
        {
            "binary_name": "libopenscap8",
            "binary_version": "1.2.17-0.1ubuntu7.22.04.3"
        },
        {
            "binary_name": "python3-openscap",
            "binary_version": "1.2.17-0.1ubuntu7.22.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:24.04:LTS
openscap

Package

Name
openscap
Purl
pkg:deb/ubuntu/openscap?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.3.8+dfsg-3
1.3.9+dfsg-1
1.3.9+dfsg-1build1
1.3.9+dfsg-1build2
1.3.9+dfsg-1.1ubuntu1
1.3.9+dfsg-1.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "libopenscap25t64",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "openscap-common",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "openscap-scanner",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "openscap-utils",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        },
        {
            "binary_name": "python3-openscap",
            "binary_version": "1.3.9+dfsg-1.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:26.04:LTS
openscap

Package

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

Affected ranges

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

Affected versions

1.*
1.4.2+dfsg-2
1.4.2+dfsg-2build1
1.4.3+dfsg-1
1.4.3+dfsg-1build1
1.4.3+dfsg-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        },
        {
            "binary_name": "libopenscap33",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        },
        {
            "binary_name": "openscap-common",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        },
        {
            "binary_name": "openscap-scanner",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        },
        {
            "binary_name": "openscap-utils",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        },
        {
            "binary_name": "python3-openscap",
            "binary_version": "1.4.3+dfsg-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:26.10
openscap

Package

Name
openscap
Purl
pkg:deb/ubuntu/openscap?arch=source&distro=stonking

Affected ranges

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

Affected versions

1.*
1.4.3+dfsg-1build1
1.4.4+dfsg-1
1.4.4+dfsg-1ubuntu1
1.4.4+dfsg-1ubuntu2
1.4.4+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.4.4+dfsg-2"
        },
        {
            "binary_name": "libopenscap33",
            "binary_version": "1.4.4+dfsg-2"
        },
        {
            "binary_name": "openscap-common",
            "binary_version": "1.4.4+dfsg-2"
        },
        {
            "binary_name": "openscap-scanner",
            "binary_version": "1.4.4+dfsg-2"
        },
        {
            "binary_name": "openscap-utils",
            "binary_version": "1.4.4+dfsg-2"
        },
        {
            "binary_name": "python3-openscap",
            "binary_version": "1.4.4+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"
Ubuntu:Pro:16.04:LTS
openscap

Package

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

Affected ranges

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

Affected versions

1.*
1.2.3-1build2
1.2.7-1
1.2.7-1build1
1.2.8-1
1.2.8-1ubuntu0.1
1.2.8-1ubuntu0.2
1.2.8-1ubuntu0.3
1.2.8-1ubuntu03+esm2
1.2.8-1ubuntu03+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenscap-perl",
            "binary_version": "1.2.8-1ubuntu03+esm3"
        },
        {
            "binary_name": "libopenscap8",
            "binary_version": "1.2.8-1ubuntu03+esm3"
        },
        {
            "binary_name": "python-openscap",
            "binary_version": "1.2.8-1ubuntu03+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-122056.json"