UBUNTU-CVE-2026-40214

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Source
https://ubuntu.com/security/CVE-2026-40214
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40214.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40214
Upstream
  • CVE-2026-40214
Downstream
Related
Published
2026-05-07T22:16:00Z
Modified
2026-06-09T21:19:11Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service.

References

Affected packages

Ubuntu:25.10 / cyborg

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
14.0.0-3+deb13u1build0.25.10.1

Affected versions

13.*
13.0.0-2
14.*
14.0.0-2
14.0.0-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "cyborg-agent",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
        },
        {
            "binary_name": "cyborg-api",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
        },
        {
            "binary_name": "cyborg-common",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
        },
        {
            "binary_name": "cyborg-conductor",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
        },
        {
            "binary_name": "python3-cyborg",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40214.json"

Ubuntu:26.04:LTS / cyborg

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
16.0.0-2ubuntu0.1

Affected versions

14.*
14.0.0-3
15.*
15.0.0-1
16.*
16.0.0~rc1-2
16.0.0-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "cyborg-agent",
            "binary_version": "16.0.0-2ubuntu0.1"
        },
        {
            "binary_name": "cyborg-api",
            "binary_version": "16.0.0-2ubuntu0.1"
        },
        {
            "binary_name": "cyborg-common",
            "binary_version": "16.0.0-2ubuntu0.1"
        },
        {
            "binary_name": "cyborg-conductor",
            "binary_version": "16.0.0-2ubuntu0.1"
        },
        {
            "binary_name": "python3-cyborg",
            "binary_version": "16.0.0-2ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40214.json"