Vulnerability-Lookup

CVE-2026-61400 (GCVE-0-2026-61400)

Vulnerability from cvelistv5 – Published: 2026-08-21 08:25 – Updated: 2026-08-22 03:56

Title

Apache CloudStack: Get and Run Diagnostics Command Injection

Summary

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Apache CloudStack's run and get diagnostics functionality for the system VMs and virtual routers. An authenticated user holding the permissions required to invoke either `getDiagnosticsData` or `runDiagnostics` can achieve arbitrary command execution on the system VM and/or Virtual Router instances, with commands running as root (or as the diagnostics-process user, at minimum). This represents a full compromise of the affected instance and, depending on network segmentation, may provide a foothold for lateral movement within the CloudStack-managed infrastructure, including access to guest network traffic handled by the compromised Virtual Router. The getDiagnosticsData and runDiagnostics APIs are restricted to only Admin role accounts by default. This issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/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 2026-08-21 00:00 UTC

CWE

CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')

Assigner

apache mitre root

References

1 reference

URL	Tags
https://lists.apache.org/thread/g6cwddtjrwbh1d56w…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Apache Software Foundation	Apache CloudStack	Affected: 4.14.0.0 , ≤ 4.20.3.0 (semver) Affected: 4.21.0.0 , ≤ 4.22.1.0 (semver)	guessed

Credits

Łukasz Bawolski <Lukasz.Bawolski@exea.pl>

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-61400

Vulnerability from fkie_nvd - Published: 2026-08-21 09:16 - Updated: 2026-08-24 16:37

Severity

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

Summary

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "defaultStatus": "unaffected",
          "product": "Apache CloudStack",
          "vendor": "Apache Software Foundation",
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GHSA-G382-2JW5-F8XR

Vulnerability from github – Published: 2026-08-21 09:32 – Updated: 2026-08-21 18:34

Details

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Apache CloudStack's run and get diagnostics functionality for the system VMs and virtual routers.

An authenticated user holding the permissions required to invoke either getDiagnosticsData or runDiagnostics can achieve arbitrary command execution on the system VM and/or Virtual Router instances, with commands running as root (or as the diagnostics-process user, at minimum). This represents a full compromise of the affected instance and, depending on network segmentation, may provide a foothold for lateral movement within the CloudStack-managed infrastructure, including access to guest network traffic handled by the compromised Virtual Router.

The getDiagnosticsData and runDiagnostics APIs are restricted to only Admin role accounts by default.

This issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

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  ],
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      "CWE-77"
    ],
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-21T09:16:39Z",
    "severity": "HIGH"
  },
  "details": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027) vulnerability in Apache CloudStack\u0027s run and get diagnostics functionality for the system VMs and virtual routers.\n\nAn authenticated user holding the permissions required to invoke either `getDiagnosticsData` or `runDiagnostics` can achieve arbitrary command execution on the system VM and/or Virtual Router instances, with commands running as root (or as the diagnostics-process user, at minimum). This represents a full compromise of the affected instance and, depending on network segmentation, may provide a foothold for lateral movement within the CloudStack-managed infrastructure, including access to guest network traffic handled by the compromised Virtual Router.\n\n\n\nThe getDiagnosticsData and runDiagnostics APIs are restricted to only Admin role accounts by default.\n\n\nThis issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.\n\nUsers are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.",
  "id": "GHSA-g382-2jw5-f8xr",
  "modified": "2026-08-21T18:34:55Z",
  "published": "2026-08-21T09:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61400"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc"
    }
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      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-61400 (GCVE-0-2026-61400)

FKIE_CVE-2026-61400

GHSA-G382-2JW5-F8XR

Tags

Sightings

Nomenclature