UBUNTU-CVE-2026-13097

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Source
https://ubuntu.com/security/CVE-2026-13097
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-13097
Upstream
Published
2026-08-20T11:16:00Z
Modified
2026-09-02T19:35:28Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A privilege escalation flaw was found in FreeIPA. The uniqueness constraint enforced on Kerberos principal name attributes in the 389-ds directory server does not properly account for equivalent representations of the same principal name, allowing a user with sufficient LDAP write privileges to create a service principal that impersonates an existing privileged one. This can lead to unauthorized acquisition of Kerberos service tickets for sensitive services, potentially resulting in full domain compromise.

References

Affected packages

Ubuntu:18.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.4.4-3ubuntu1
4.4.4-4
4.7.0~pre1+git20180411-2ubuntu1
4.7.0~pre1+git20180411-2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-admintools",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-server",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-server-dns",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-server-trust-ad",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "freeipa-tests",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "python-ipaclient",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "python-ipalib",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "python-ipaserver",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        },
        {
            "binary_name": "python-ipatests",
            "binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:20.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.8.1-2ubuntu1
4.8.3-1
4.8.6-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.8.6-1ubuntu2"
        },
        {
            "binary_name": "freeipa-client-samba",
            "binary_version": "4.8.6-1ubuntu2"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.8.6-1ubuntu2"
        },
        {
            "binary_name": "python3-ipaclient",
            "binary_version": "4.8.6-1ubuntu2"
        },
        {
            "binary_name": "python3-ipalib",
            "binary_version": "4.8.6-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:22.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.8.6-1ubuntu6
4.8.6-1ubuntu8
4.8.6-1ubuntu9
4.9.8-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.9.8-1"
        },
        {
            "binary_name": "freeipa-client-epn",
            "binary_version": "4.9.8-1"
        },
        {
            "binary_name": "freeipa-client-samba",
            "binary_version": "4.9.8-1"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.9.8-1"
        },
        {
            "binary_name": "python3-ipaclient",
            "binary_version": "4.9.8-1"
        },
        {
            "binary_name": "python3-ipalib",
            "binary_version": "4.9.8-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:24.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.10.2-1
4.10.2-2
4.10.2-2ubuntu3
4.11.1-1
4.11.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.11.1-2"
        },
        {
            "binary_name": "freeipa-client-epn",
            "binary_version": "4.11.1-2"
        },
        {
            "binary_name": "freeipa-client-samba",
            "binary_version": "4.11.1-2"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.11.1-2"
        },
        {
            "binary_name": "python3-ipaclient",
            "binary_version": "4.11.1-2"
        },
        {
            "binary_name": "python3-ipalib",
            "binary_version": "4.11.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:26.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.12.4-1
4.12.4-2
4.13.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.13.1-1"
        },
        {
            "binary_name": "freeipa-client-epn",
            "binary_version": "4.13.1-1"
        },
        {
            "binary_name": "freeipa-client-samba",
            "binary_version": "4.13.1-1"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.13.1-1"
        },
        {
            "binary_name": "python3-ipaclient",
            "binary_version": "4.13.1-1"
        },
        {
            "binary_name": "python3-ipalib",
            "binary_version": "4.13.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:Pro:14.04:LTS
freeipa

Package

Name
freeipa
Purl
pkg:deb/ubuntu/freeipa?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

3.*
3.2.1-0ubuntu1
3.3.4-0ubuntu1
3.3.4-0ubuntu2
3.3.4-0ubuntu3
3.3.4-0ubuntu3.1
3.3.4-0ubuntu3.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-client",
            "binary_version": "3.3.4-0ubuntu3.1+esm1"
        },
        {
            "binary_name": "python-freeipa",
            "binary_version": "3.3.4-0ubuntu3.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"
Ubuntu:Pro:16.04:LTS
freeipa

Package

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

Affected ranges

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

Affected versions

4.*
4.1.4-1
4.3.1-0ubuntu1
4.3.1-0ubuntu1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "freeipa-admintools",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-client",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-common",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-server",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-server-dns",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-server-trust-ad",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "freeipa-tests",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "python-ipaclient",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "python-ipalib",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "python-ipaserver",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        },
        {
            "binary_name": "python-ipatests",
            "binary_version": "4.3.1-0ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13097.json"