CVE-2026-42088

{
  "id": "CVE-2026-42088",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-04T18:16:31.007",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to version 7.0.0-rc3, the Script Runner widget allows users to execute Python and Ruby scripts directly from the openc3-COSMOS-script-runner-api container. Because all the docker containers share a network, users can execute specially crafted scripts to bypass the API permissions check and perform administrative actions, including reading and modifying data inside the Redis database, which can be used to read secrets and change COSMOS settings, as well as read and write to the buckets service, which holds configuration, log, and plugin files. These actions are normally only available from the Admin Console or with administrative privileges. Any user with permission to create and run scripts can connect to any service in the docker network. This issue has been patched in version 7.0.0-rc3."
    },
    {
      "lang": "es",
      "value": "OpenC3 COSMOS proporciona la funcionalidad necesaria para enviar comandos a y recibir datos de uno o más sistemas embebidos. Antes de la versión 7.0.0-rc3, el widget Script Runner permite a los usuarios ejecutar scripts de Python y Ruby directamente desde el contenedor openc3-COSMOS-script-runner-API. Debido a que todos los contenedores docker comparten una red, los usuarios pueden ejecutar scripts especialmente diseñados para eludir la verificación de permisos de la API y realizar acciones administrativas, incluyendo la lectura y modificación de datos dentro de la base de datos Redis, lo que puede usarse para leer secretos y cambiar la configuración de COSMOS, así como leer y escribir en el servicio de buckets, que contiene archivos de configuración, registro y plugin. Estas acciones normalmente solo están disponibles desde la Consola de Administración o con privilegios administrativos. Cualquier usuario con permiso para crear y ejecutar scripts puede conectarse a cualquier servicio en la red docker. Este problema ha sido parcheado en la versión 7.0.0-rc3."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "OpenC3",
          "product": "cosmos",
          "versions": [
            {
              "version": "< 7.0.0-rc3",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 5.8
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-04T19:35:35.722403Z",
          "id": "CVE-2026-42088",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-250"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:openc3:cosmos:*:*:*:*:open_source:*:*:*",
              "versionEndExcluding": "7.0.0",
              "matchCriteriaId": "286B983F-D46F-46E4-8EEA-FFA6506A005B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:openc3:cosmos:7.0.0:rc1:*:*:open_source:*:*:*",
              "matchCriteriaId": "38B72355-49A3-4D2F-BFDB-EE53C9E2C7AD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:openc3:cosmos:7.0.0:rc2:*:*:open_source:*:*:*",
              "matchCriteriaId": "13E3A0EA-1085-4505-80BB-C0B133EC3498"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/OpenC3/cosmos/releases/tag/v7.0.0",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-2wvh-87g2-89hr",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-2wvh-87g2-89hr",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    }
  ]
}