CVE-2026-40939

{
  "id": "CVE-2026-40939",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-21T22:16:19.547",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Data Sharing Framework (DSF) implements a distributed process engine based on the BPMN 2.0 and FHIR R4 standards. Prior to 2.1.0, OIDC-authenticated sessions had no configured maximum inactivity timeout. Sessions persisted indefinitely after login, even after the OIDC access token expired. This vulnerability is fixed in 2.1.0."
    },
    {
      "lang": "es",
      "value": "El Data Sharing Framework (DSF) implementa un motor de procesos distribuido basado en los estándares BPMN 2.0 y FHIR R4. Antes de 2.1.0, las sesiones autenticadas con OIDC no tenían un tiempo de inactividad máximo configurado. Las sesiones persistían indefinidamente después del inicio de sesión, incluso después de que el token de acceso OIDC caducara. Esta vulnerabilidad está corregida en 2.1.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "datasharingframework",
          "product": "dsf",
          "versions": [
            {
              "version": "< 2.1.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "dev.dsf",
          "product": "dsf-bpe-server",
          "versions": [
            {
              "version": "< 2.1.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "dev.dsf",
          "product": "dsf-common-jetty",
          "versions": [
            {
              "version": "< 2.1.0",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "dev.dsf",
          "product": "dsf-fhir-server",
          "versions": [
            {
              "version": "< 2.1.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "PHYSICAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-22T17:43:47.019567Z",
          "id": "CVE-2026-40939",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://dsf.dev/operations/v2.1.0/bpe/oidc.html",
      "source": "[email protected]"
    },
    {
      "url": "https://dsf.dev/operations/v2.1.0/fhir/oidc.html",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/datasharingframework/dsf/commit/f4ecb002f7d12642f92da6b79371ed367d0140e7",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/datasharingframework/dsf/security/advisories/GHSA-gj7p-595x-qwf5",
      "source": "[email protected]"
    }
  ]
}