UBUNTU-CVE-2026-84165

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Source

https://ubuntu.com/security/CVE-2026-84165

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84165.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84165

Upstream

CVE-2026-84165

Published

2026-09-01T11:16:00Z

Modified

2026-09-16T14:03:44Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A vulnerability relating to incorrect access control in OpenNebula by OpenNebula Systems, affecting all versions prior to 7.4. This vulnerability could allow an authenticated user with basic permissions to execute commands on virtual machines belonging to other users via the one.vm.exec function, without proper verification of access permissions. To exploit the vulnerability, it is only necessary to know the virtual machine’s identifier and for qemu-agent to be enabled on that machine. Exploitation could allow commands to be executed and compromise the confidentiality, integrity and availability of the affected virtual machines.

References

Affected packages

Ubuntu:16.04:LTS / opennebula

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.4.1-4.2build1

4.*

4.12.3+dfsg-3

4.12.3+dfsg-3build1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libopennebula-java",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-common",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-flow",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-gate",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-node",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-sunstone",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "opennebula-tools",
            "binary_version":  "4.12.3+dfsg-3build1"
        },
        {
            "binary_name":  "ruby-opennebula",
            "binary_version":  "4.12.3+dfsg-3build1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84165.json"

Ubuntu:18.04:LTS / opennebula