FKIE_CVE-2026-53405

Vulnerability from fkie_nvd - Published: 2026-07-20 15:16 - Updated: 2026-07-21 16:17
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements can import arbitrary BPMN process definitions via the REST API and then start the process. When a BPMN process containing a Groovy scriptTask is imported and started, the Groovy script is executed directly on the server, with no sandbox. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by wrapping Flowable's Groovy scriptTasks with security sandbox.
References
security@apache.orghttps://lists.apache.org/thread/vdq0tk6ylffz6trbgbllj9kb1ndzff7k
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/07/20/6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.syncope.ext.flowable:syncope-ext-flowable-bpmn",
          "product": "Apache Syncope",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.0.16",
              "status": "affected",
              "version": "3.0.0-M0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.0.6",
              "status": "affected",
              "version": "4.0.0-M0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.1.1",
              "status": "affected",
              "version": "4.1.0-M0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Isolation or Compartmentalization vulnerability in Apache Syncope.\n\nAn administrator with adequate entitlements can import arbitrary BPMN process definitions via the REST API and then start the process. When a BPMN process containing a Groovy scriptTask is imported and\u00a0started, the Groovy script is executed directly on the server, with no sandbox.\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1.\n\n\n\n\nUsers are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by wrapping Flowable\u0027s\u00a0Groovy scriptTasks with security sandbox."
    }
  ],
  "id": "CVE-2026-53405",
  "lastModified": "2026-07-21T16:17:14.853",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53405",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-21T14:35:55.527536Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-20T15:16:42.987",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://lists.apache.org/thread/vdq0tk6ylffz6trbgbllj9kb1ndzff7k"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/20/6"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-653"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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