UBUNTU-CVE-2026-43002

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Source
https://ubuntu.com/security/CVE-2026-43002
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-43002
Upstream
Published
2026-05-05T17:17:00Z
Modified
2026-05-20T16:25:44Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix.

References

Affected packages

Ubuntu:16.04:LTS
horizon

Package

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

Affected ranges

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

Affected versions

2:8.*
2:8.0.0-0ubuntu2
2:9.*
2:9.0.0~b1-0ubuntu1
2:9.0.0~b1-0ubuntu2
2:9.0.0~b2-0ubuntu1
2:9.0.0~b3-0ubuntu1
2:9.0.0~rc1-0ubuntu1
2:9.0.0-0ubuntu1
2:9.0.0-0ubuntu2
2:9.0.0-0ubuntu2.16.04.1
2:9.0.1-0ubuntu2
2:9.1.0-0ubuntu1
2:9.1.1-0ubuntu1
2:9.1.2-0ubuntu1
2:9.1.2-0ubuntu2
2:9.1.2-0ubuntu3
2:9.1.2-0ubuntu5
2:9.1.2-0ubuntu5.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "2:9.1.2-0ubuntu5.2"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "2:9.1.2-0ubuntu5.2"
        },
        {
            "binary_name": "python-django-horizon",
            "binary_version": "2:9.1.2-0ubuntu5.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:18.04:LTS
horizon

Package

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

Affected ranges

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

Affected versions

3:12.*
3:12.0.0-0ubuntu2.1
3:12.0.0-0ubuntu3
3:13.*
3:13.0.0~b1-0ubuntu1
3:13.0.0~b1-0ubuntu2
3:13.0.0-0ubuntu1
3:13.0.0-0ubuntu1.1
3:13.0.1-0ubuntu1
3:13.0.1-0ubuntu2
3:13.0.1-0ubuntu3
3:13.0.1-0ubuntu4
3:13.0.1-0ubuntu5
3:13.0.1-0ubuntu6
3:13.0.2-0ubuntu1
3:13.0.2-0ubuntu2
3:13.0.2-0ubuntu3
3:13.0.3-0ubuntu1
3:13.0.3-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "3:13.0.3-0ubuntu2"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "3:13.0.3-0ubuntu2"
        },
        {
            "binary_name": "python-django-horizon",
            "binary_version": "3:13.0.3-0ubuntu2"
        },
        {
            "binary_name": "python-django-openstack-auth",
            "binary_version": "3:13.0.3-0ubuntu2"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "3:13.0.3-0ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:22.04:LTS
horizon

Package

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

Affected ranges

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

Affected versions

4:20.*
4:20.1.0-0ubuntu1
4:20.2.0+git2021120911.fc1012628-0ubuntu1
4:20.2.0+git2022011216.8fe5bbc8d-0ubuntu1
4:21.*
4:21.0.0+git2022030313.dd9e4c82b-0ubuntu2
4:22.*
4:22.1.0-0ubuntu1
4:22.1.0-0ubuntu2
4:22.1.0-0ubuntu2.1
4:22.1.1-0ubuntu1
4:22.1.1-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "4:22.1.1-0ubuntu1.1"
        },
        {
            "binary_name": "openstack-dashboard-common",
            "binary_version": "4:22.1.1-0ubuntu1.1"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "4:22.1.1-0ubuntu1.1"
        },
        {
            "binary_name": "python3-django-horizon",
            "binary_version": "4:22.1.1-0ubuntu1.1"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "4:22.1.1-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:24.04:LTS
horizon

Package

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

Affected ranges

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

Affected versions

4:23.*
4:23.3.0-0ubuntu1
4:23.3.0-0ubuntu2
4:23.4.0+git2024011916.a77818d7-0ubuntu1
4:24.*
4:24.0.0-0ubuntu1
4:24.0.0-0ubuntu1.1
4:24.0.0-0ubuntu1.2
4:24.0.0-0ubuntu1.3
4:24.0.1-0ubuntu0.24.04.1
4:24.0.1-0ubuntu0.24.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "4:24.0.1-0ubuntu0.24.04.2"
        },
        {
            "binary_name": "openstack-dashboard-common",
            "binary_version": "4:24.0.1-0ubuntu0.24.04.2"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "4:24.0.1-0ubuntu0.24.04.2"
        },
        {
            "binary_name": "python3-django-horizon",
            "binary_version": "4:24.0.1-0ubuntu0.24.04.2"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "4:24.0.1-0ubuntu0.24.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:25.10
horizon

Package

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

Affected ranges

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

Affected versions

4:25.*
4:25.3.0-0ubuntu1
4:25.4.0+git2025070714.33cbc0c53-0ubuntu2
4:25.5.1-0ubuntu1
4:25.5.1-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "4:25.5.1-0ubuntu1.1"
        },
        {
            "binary_name": "openstack-dashboard-common",
            "binary_version": "4:25.5.1-0ubuntu1.1"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "4:25.5.1-0ubuntu1.1"
        },
        {
            "binary_name": "python3-django-horizon",
            "binary_version": "4:25.5.1-0ubuntu1.1"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "4:25.5.1-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:26.04:LTS
horizon

Package

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

Affected ranges

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

Affected versions

4:25.*
4:25.5.1-0ubuntu1
4:25.5.1-0ubuntu2
4:25.5.1+git2026012819.479212220-0ubuntu1
4:25.7.1-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "4:25.7.1-0ubuntu1"
        },
        {
            "binary_name": "openstack-dashboard-common",
            "binary_version": "4:25.7.1-0ubuntu1"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "4:25.7.1-0ubuntu1"
        },
        {
            "binary_name": "python3-django-horizon",
            "binary_version": "4:25.7.1-0ubuntu1"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "4:25.7.1-0ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"
Ubuntu:Pro:20.04:LTS
horizon

Package

Name
horizon
Purl
pkg:deb/ubuntu/horizon?arch=source&distro=esm-infra%2Ffocal

Affected ranges

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

Affected versions

3:16.*
3:16.0.0-0ubuntu1
3:17.*
3:17.0.0~b1~git2019121712.f7313b74c-0ubuntu1
3:18.*
3:18.0.1~git2020021409.bb959361b-0ubuntu2
3:18.0.1~git2020021409.bb959361b-0ubuntu3
3:18.2.1~git2020032709.2c4470272-0ubuntu1
3:18.2.1~git2020041013.754804667-0ubuntu1
3:18.2.1~git2020041013.754804667-0ubuntu2
3:18.2.1~git2020041013.754804667-0ubuntu3
3:18.3.2-0ubuntu0.20.04.1
3:18.3.2-0ubuntu0.20.04.2
3:18.3.2-0ubuntu0.20.04.4
3:18.3.3-0ubuntu1
3:18.3.4-0ubuntu1
3:18.3.5-0ubuntu1
3:18.3.5-0ubuntu2
3:18.3.5-0ubuntu2.1
3:18.3.5-0ubuntu2.2
3:18.3.5-0ubuntu2.3
3:18.3.5-0ubuntu2.3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openstack-dashboard",
            "binary_version": "3:18.3.5-0ubuntu2.3+esm1"
        },
        {
            "binary_name": "openstack-dashboard-common",
            "binary_version": "3:18.3.5-0ubuntu2.3+esm1"
        },
        {
            "binary_name": "openstack-dashboard-ubuntu-theme",
            "binary_version": "3:18.3.5-0ubuntu2.3+esm1"
        },
        {
            "binary_name": "python3-django-horizon",
            "binary_version": "3:18.3.5-0ubuntu2.3+esm1"
        },
        {
            "binary_name": "python3-django-openstack-auth",
            "binary_version": "3:18.3.5-0ubuntu2.3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43002.json"