Vulnerability-Lookup

CVE-2026-66138 (GCVE-0-2026-66138)

Vulnerability from cvelistv5 – Published: 2026-07-24 03:53 – Updated: 2026-07-24 23:22

Summary

In OpenStack Ironic Python Agent through 11.6.0, a project-scoped user with the manager role can achieve arbitrary code execution on a running Ironic-Python-Agent via a maliciously constructed configuration, because the value of ntp_server is passed to a shell.

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-24 12:26 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

mitre mitre root

References

3 references

URL	Tags
https://bugs.launchpad.net/ironic-python-agent/+b…
https://security.openstack.org/ossa/OSSA-2026-027.html
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version	CPE status
OpenStack	Ironic Python Agent	Affected: 11.6.0 (semver) Affected: 11.3.0 , ≤ 11.5.1 (semver) Affected: 11.0.0 , ≤ 11.2.1 (semver) Affected: 6.0.0 , ≤ 10.2.3 (semver) cpe:2.3:a:openstack:ironic_python_agent:::::::: cpe:2.3:a:openstack:ironic_python_agent:::::::: cpe:2.3:a:openstack:ironic_python_agent:::::::: cpe:2.3:a:openstack:ironic_python_agent::::::::

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-66138

Vulnerability from fkie_nvd - Published: 2026-07-24 05:16 - Updated: 2026-07-30 19:32

Severity

7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	cve@mitre.org	https://bugs.launchpad.net/ironic-python-agent/+bug/2160050
	cve@mitre.org	https://security.openstack.org/ossa/OSSA-2026-027.html
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/07/24/26

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-WJ9F-VQW7-855C

Vulnerability from github – Published: 2026-07-24 06:34 – Updated: 2026-07-25 00:31

Details

Severity

7.2 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

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  "id": "GHSA-wj9f-vqw7-855c",
  "modified": "2026-07-25T00:31:47Z",
  "published": "2026-07-24T06:34:11Z",
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66138"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ironic-python-agent/+bug/2160050"
    },
    {
      "type": "WEB",
      "url": "https://security.openstack.org/ossa/OSSA-2026-027.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/24/26"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:57365

Vulnerability from csaf_redhat - Published: 2026-08-25 10:00 - Updated: 2026-09-23 02:57

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.22.11 bug fix and security update

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2026-66138.

CVE-2026-66138

A vulnerability was found in Ironic-Python-Agent's (IPA) time syncing code. The value of the ntp_server configuration option is inserted into a shell command without sanitization. This command is run as root very early in the IPA startup flow, allowing an attacker to run arbitrary commands as root. This value can be set in three ways; directly in an operator-created ramdisk, set via kernel command line using Ironic, or passing the parameters via mDNS responder for mDNS enabled installation. For the most common, and highest security risk case, this means a Manager role associated with the project set as node.owner may be able to trigger this vulnerability.

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known not affected: 653 products

https://access.redhat.com/errata/RHSA-2026:57365

Open the full advisory

RHSA-2026:60446

Vulnerability from csaf_redhat - Published: 2026-09-01 13:37 - Updated: 2026-09-23 00:41

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.20.36 bug fix and security update

Severity

Important

Scope

11 vulnerabilities in this advisory, including CVE-2026-66138.

CVE-2026-66138

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known not affected: 661 products

https://access.redhat.com/errata/RHSA-2026:60446

Open the full advisory

RHSA-2026:60477

Vulnerability from csaf_redhat - Published: 2026-09-01 08:08 - Updated: 2026-09-23 00:41

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.21.31 bug fix and security update

Severity

Important

Scope

12 vulnerabilities in this advisory, including CVE-2026-66138.

CVE-2026-66138

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known not affected: 649 products

https://access.redhat.com/errata/RHSA-2026:60477

Open the full advisory

RHSA-2026:63047

Vulnerability from csaf_redhat - Published: 2026-09-09 08:42 - Updated: 2026-09-23 00:41

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.19.46 bug fix and security update

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2026-66138.

CVE-2026-66138

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known not affected: 648 products

https://access.redhat.com/errata/RHSA-2026:63047

Open the full advisory

RHSA-2026:65852

Vulnerability from csaf_redhat - Published: 2026-09-17 07:05 - Updated: 2026-09-23 02:58

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.18.55 bug fix and security update

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2026-66138.

CVE-2026-66138

8.8 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fixed: 2 products Known not affected: 648 products

https://access.redhat.com/errata/RHSA-2026:65852

Open the full advisory

UBUNTU-CVE-2026-66138 (CVE-2026-66138)

Vulnerability from osv_ubuntu – Published: 2026-07-24 05:16 – Updated: 2026-07-29 08:01 – Source website

Details

Severity

7.2 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-66138	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-66138	REPORT
	https://www.openwall.com/lists/oss-security/2026/…	REPORT
	https://bugs.launchpad.net/ironic-python-agent/+b…	REPORT
	https://security.openstack.org/ossa/OSSA-2026-027.html	REPORT
	http://www.openwall.com/lists/oss-security/2026/0…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ironic-python-agent",
            "binary_version": "9.1.0-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ironic-python-agent",
        "purl": "pkg:deb/ubuntu/ironic-python-agent@9.1.0-1ubuntu1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.1.0-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ironic-python-agent",
            "binary_version": "11.2.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "ironic-python-agent",
        "purl": "pkg:deb/ubuntu/ironic-python-agent@11.2.0-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.2.0-3",
        "11.2.0-2"
      ]
    }
  ],
  "aliases": [],
  "details": "In OpenStack Ironic Python Agent through 11.6.0, a\u00a0project-scoped user with the manager role can achieve arbitrary code execution on a running Ironic-Python-Agent via a maliciously constructed configuration, because the value of ntp_server is passed to a shell.",
  "id": "UBUNTU-CVE-2026-66138",
  "modified": "2026-07-29T08:01:44Z",
  "published": "2026-07-24T05:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-66138"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-66138"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2026/07/23/5"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/ironic-python-agent/+bug/2160050"
    },
    {
      "type": "REPORT",
      "url": "https://security.openstack.org/ossa/OSSA-2026-027.html"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/24/26"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-66138"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-66138 (GCVE-0-2026-66138)

FKIE_CVE-2026-66138

GHSA-WJ9F-VQW7-855C

RHSA-2026:57365

RHSA-2026:60446

RHSA-2026:60477

RHSA-2026:63047

RHSA-2026:65852

UBUNTU-CVE-2026-66138 (CVE-2026-66138)

Tags

Sightings

Nomenclature

Related by attack behaviour