USN-8434-1

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Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-8434-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8434-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8434-1
Upstream
Related
Published
2026-06-16T14:45:58Z
Modified
2026-06-17T11:14:13.472989667Z
Summary
nova vulnerability
Details

It was discovered that Nova did not strip internal _nova-prefixed scheduler hints supplied by users on instance creation. An attacker could possibly use this issue to bypass Placement resource claims and scheduling constraint enforcement.

References

Affected packages

Ubuntu:22.04:LTS / nova

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:25.2.1-0ubuntu2.11

Affected versions

3:24.*
3:24.0.0-0ubuntu1
3:24.0.0+git2022030310.3f274c65cc-0ubuntu2
3:25.*
3:25.0.0-0ubuntu1
3:25.0.0-0ubuntu1.1
3:25.0.1-0ubuntu1
3:25.1.0-0ubuntu1
3:25.1.0-0ubuntu2
3:25.1.0-0ubuntu2.1
3:25.1.0-0ubuntu2.2
3:25.1.1-0ubuntu1
3:25.1.1-0ubuntu1.1
3:25.2.0-0ubuntu1
3:25.2.1-0ubuntu1
3:25.2.1-0ubuntu2
3:25.2.1-0ubuntu2.3
3:25.2.1-0ubuntu2.6
3:25.2.1-0ubuntu2.7
3:25.2.1-0ubuntu2.8
3:25.2.1-0ubuntu2.9
3:25.2.1-0ubuntu2.10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-ajax-console-proxy"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-api"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-api-metadata"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-api-os-compute"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-api-os-volume"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-cells"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-common"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-ironic"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-kvm"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-libvirt"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-lxc"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-qemu"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-vmware"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-compute-xen"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-conductor"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-novncproxy"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-scheduler"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-serialproxy"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-spiceproxy"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "nova-volume"
        },
        {
            "binary_version": "3:25.2.1-0ubuntu2.11",
            "binary_name": "python3-nova"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8434-1.json"
cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-46448"
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}

Ubuntu:24.04:LTS / nova

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:29.2.0-0ubuntu1.7

Affected versions

3:28.*
3:28.0.0-0ubuntu1
3:28.0.1+git2024011916.087c372a-0ubuntu1
3:28.0.1+git2024011916.087c372a-0ubuntu2
3:29.*
3:29.0.0~rc1-0ubuntu2
3:29.0.1-0ubuntu1
3:29.0.1-0ubuntu1.3
3:29.0.1-0ubuntu1.4
3:29.2.0-0ubuntu1
3:29.2.0-0ubuntu1.1
3:29.2.0-0ubuntu1.2
3:29.2.0-0ubuntu1.3
3:29.2.0-0ubuntu1.4
3:29.2.0-0ubuntu1.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-ajax-console-proxy"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-api"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-api-metadata"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-api-os-compute"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-api-os-volume"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-cells"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-common"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-ironic"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-kvm"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-libvirt"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-lxc"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-qemu"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-vmware"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-compute-xen"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-conductor"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-novncproxy"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-scheduler"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-serialproxy"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-spiceproxy"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "nova-volume"
        },
        {
            "binary_version": "3:29.2.0-0ubuntu1.7",
            "binary_name": "python3-nova"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8434-1.json"
cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-46448"
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}

Ubuntu:25.10 / nova

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:32.0.0-0ubuntu1.3

Affected versions

3:31.*
3:31.0.0-0ubuntu1
3:31.0.0+git2025070714.1c03429337-0ubuntu1
3:31.0.0+git2025070714.1c03429337-0ubuntu2
3:32.*
3:32.0.0~rc1-0ubuntu1
3:32.0.0-0ubuntu1
3:32.0.0-0ubuntu1.1
3:32.0.0-0ubuntu1.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-ajax-console-proxy"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-api"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-api-metadata"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-api-os-compute"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-api-os-volume"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-cells"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-common"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-ironic"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-kvm"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-libvirt"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-lxc"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-qemu"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-vmware"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-compute-xen"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-conductor"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-novncproxy"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-scheduler"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-serialproxy"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-spiceproxy"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "nova-volume"
        },
        {
            "binary_version": "3:32.0.0-0ubuntu1.3",
            "binary_name": "python3-nova"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8434-1.json"
cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-46448"
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}

Ubuntu:26.04:LTS / nova

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3:33.0.0-0ubuntu3.1

Affected versions

3:32.*
3:32.0.0-0ubuntu1
3:32.0.0+git20260128.59a7093-0ubuntu1
3:33.*
3:33.0.0~rc1-0ubuntu1
3:33.0.0-0ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-ajax-console-proxy"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-api"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-api-metadata"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-api-os-compute"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-api-os-volume"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-cells"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-common"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-ironic"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-kvm"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-libvirt"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-lxc"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-qemu"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-vmware"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-compute-xen"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-conductor"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-novncproxy"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-scheduler"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-serialproxy"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-spiceproxy"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "nova-volume"
        },
        {
            "binary_version": "3:33.0.0-0ubuntu3.1",
            "binary_name": "python3-nova"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8434-1.json"
cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2026-46448"
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}