CVE-2026-116755 (GCVE-0-2026-116755)

Vulnerability from cvelistv5 – Published: 2026-10-31 01:56 – Updated: 2026-10-31 01:56
VLAI
Title
SoftIron HyperCloud: OS Command Injection in Orchestrator via Virtual Machine Template Fields
Summary
Improper Neutralization of Special Elements used in a Command ('Command Injection') in the Orchestrator component of SoftIron HyperCloud allows an authenticated user with access to the management plane to execute arbitrary operating system commands on hypervisor hosts as the privileged orchestration user. Attacker-controlled virtual machine template content (for example, the VM DESCRIPTION field) is delivered to hosts through a shell here-document whose terminator is not quoted, so shell expansion and here-document terminator injection are performed on that content during virtual machine lifecycle operations such as deploy, migrate, and network setup. Exploitation requires valid credentials, access to the management plane (owning a virtual machine alone is not sufficient), and a lifecycle operation that reaches the affected host. This issue affects the Orchestrator component of SoftIron HyperCloud from 1.0 through 2.6.17 and is fixed in 2.6.18.
Severity
7.4 (High)
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
SoftIron CNA under the mitre root
CNA scorecard – unranked: 1 record in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
SoftIron HyperCloud Affected: 1.0 , < 2.6.18 (semver)
guessed Create a notification for this product.
Date Public
2026-10-30 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Orchestrator"
          ],
          "product": "HyperCloud",
          "vendor": "SoftIron",
          "versions": [
            {
              "lessThan": "2.6.18",
              "status": "affected",
              "version": "1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2026-10-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027) in the Orchestrator component of SoftIron HyperCloud allows an authenticated user with access to the management plane to execute arbitrary operating system commands on hypervisor hosts as the privileged orchestration user. Attacker-controlled virtual machine template content (for example, the VM DESCRIPTION field) is delivered to hosts through a shell here-document whose terminator is not quoted, so shell expansion and here-document terminator injection are performed on that content during virtual machine lifecycle operations such as deploy, migrate, and network setup. Exploitation requires valid credentials, access to the management plane (owning a virtual machine alone is not sufficient), and a lifecycle operation that reaches the affected host. This issue affects the Orchestrator component of SoftIron HyperCloud from 1.0 through 2.6.17 and is fixed in 2.6.18.\u003c/p\u003e"
            }
          ],
          "value": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027) in the Orchestrator component of SoftIron HyperCloud allows an authenticated user with access to the management plane to execute arbitrary operating system commands on hypervisor hosts as the privileged orchestration user. Attacker-controlled virtual machine template content (for example, the VM DESCRIPTION field) is delivered to hosts through a shell here-document whose terminator is not quoted, so shell expansion and here-document terminator injection are performed on that content during virtual machine lifecycle operations such as deploy, migrate, and network setup. Exploitation requires valid credentials, access to the management plane (owning a virtual machine alone is not sufficient), and a lifecycle operation that reaches the affected host. This issue affects the Orchestrator component of SoftIron HyperCloud from 1.0 through 2.6.17 and is fixed in 2.6.18."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-31T01:56:35.922Z",
        "orgId": "0a72a055-908d-47f5-a16a-1f09049c16c6",
        "shortName": "SoftIron"
      },
      "references": [
        {
          "url": "https://advisories.softiron.cloud/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpgrade to SoftIron HyperCloud 2.6.18 or later.\u003c/p\u003e"
            }
          ],
          "value": "Upgrade to SoftIron HyperCloud 2.6.18 or later."
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "SoftIron HyperCloud: OS Command Injection in Orchestrator via Virtual Machine Template Fields",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eNo complete workaround exists prior to upgrading. To reduce exposure, restrict access to the management plane and restrict creation and modification of virtual machine templates and template fields (such as DESCRIPTION) to trusted administrators, and limit which users can trigger virtual machine lifecycle operations (deploy, migrate, network setup). In deployments where the management plane is air-gapped or otherwise not reachable from a general network, the practical exposure is correspondingly reduced.\u003c/p\u003e"
            }
          ],
          "value": "No complete workaround exists prior to upgrading. To reduce exposure, restrict access to the management plane and restrict creation and modification of virtual machine templates and template fields (such as DESCRIPTION) to trusted administrators, and limit which users can trigger virtual machine lifecycle operations (deploy, migrate, network setup). In deployments where the management plane is air-gapped or otherwise not reachable from a general network, the practical exposure is correspondingly reduced."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0a72a055-908d-47f5-a16a-1f09049c16c6",
    "assignerShortName": "SoftIron",
    "cveId": "CVE-2026-116755",
    "datePublished": "2026-10-31T01:56:35.922Z",
    "dateReserved": "2026-10-26T20:39:27.307Z",
    "dateUpdated": "2026-10-31T01:56:35.922Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-116755",
      "date": "2026-11-02",
      "epss": "0.00929",
      "percentile": "0.60576"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "modules": [
                  "Orchestrator"
                ],
                "product": "HyperCloud",
                "vendor": "SoftIron",
                "versions": [
                  {
                    "lessThan": "2.6.18",
                    "status": "affected",
                    "version": "1.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "0a72a055-908d-47f5-a16a-1f09049c16c6"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027) in the Orchestrator component of SoftIron HyperCloud allows an authenticated user with access to the management plane to execute arbitrary operating system commands on hypervisor hosts as the privileged orchestration user. Attacker-controlled virtual machine template content (for example, the VM DESCRIPTION field) is delivered to hosts through a shell here-document whose terminator is not quoted, so shell expansion and here-document terminator injection are performed on that content during virtual machine lifecycle operations such as deploy, migrate, and network setup. Exploitation requires valid credentials, access to the management plane (owning a virtual machine alone is not sufficient), and a lifecycle operation that reaches the affected host. This issue affects the Orchestrator component of SoftIron HyperCloud from 1.0 through 2.6.17 and is fixed in 2.6.18."
          }
        ],
        "id": "CVE-2026-116755",
        "lastModified": "2026-11-02T19:34:23.993",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.4,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.5,
              "impactScore": 5.9,
              "source": "0a72a055-908d-47f5-a16a-1f09049c16c6",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-31T02:17:33.957",
        "references": [
          {
            "source": "0a72a055-908d-47f5-a16a-1f09049c16c6",
            "url": "https://advisories.softiron.cloud/"
          }
        ],
        "sourceIdentifier": "0a72a055-908d-47f5-a16a-1f09049c16c6",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-78"
              }
            ],
            "source": "0a72a055-908d-47f5-a16a-1f09049c16c6",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.