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CVE-2026-67427

Full vulnerability record from the local CVENow database.

Description

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, the workflow engine variable resolver expands ${env.VAR} for any host environment variable without an allowlist or capability policy check, allowing a workflow parameter to bypass the default capability policy denylist for env.get and env.load_dotenv and exfiltrate secrets through allowed modules. This issue is fixed in version 2.26.6.

Severity
HIGH
CVSS score
8.6 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-29 19:16:51.913000
Last modified
2026-10-24 13:10:00.147000
View original CVE JSON
{
  "id": "CVE-2026-67427",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-29T19:16:51.913",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, the workflow engine variable resolver expands ${env.VAR} for any host environment variable without an allowlist or capability policy check, allowing a workflow parameter to bypass the default capability policy denylist for env.get and env.load_dotenv and exfiltrate secrets through allowed modules. This issue is fixed in version 2.26.6."
    },
    {
      "lang": "es",
      "value": "Flyto2 Core es un kernel de ejecución para flujos de trabajo de automatización y agentes de IA. Antes de la 2.26.6, el resolvedor de variables del motor de flujo de trabajo expande ${env.VAR} para cualquier variable de entorno del host sin una lista de permitidos o una verificación de política de capacidad, permitiendo que un parámetro de flujo de trabajo omita la lista de denegados de la política de capacidad predeterminada para env.get y env.load_dotenv y exfiltre secretos a través de módulos permitidos. Este problema está solucionado en la versión 2.26.6."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "flytohub",
          "product": "flyto-core",
          "versions": [
            {
              "version": "< 2.26.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-30T14:15:23.598359Z",
          "id": "CVE-2026-67427",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        },
        {
          "lang": "en",
          "value": "CWE-668"
        },
        {
          "lang": "en",
          "value": "CWE-693"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/flytohub/flyto-core/releases/tag/v2.26.6",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-hr7p-wg7r-hg9m",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}