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            "url": "http://www.openwall.com/lists/oss-security/2026/07/20/6"
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
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              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-53405",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
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                "role": "CISA Coordinator",
                "timestamp": "2026-07-21T14:35:55.527536Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-07-21T14:57:26.644Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "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"
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              "status": "affected",
              "version": "4.0.0-M0",
              "versionType": "semver"
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              "version": "4.1.0-M0",
              "versionType": "semver"
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "follycat, Y0n3er"
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              "value": "\u003cp\u003eImproper Isolation or Compartmentalization vulnerability in Apache Syncope.\u003c/p\u003e\u003cp\u003eAn 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\u0026nbsp;started, the Groovy script is executed directly on the server, with no sandbox.\u003cbr\u003e\u003c/p\u003e\u003cp\u003eThis 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.\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by wrapping Flowable\u0027s\u0026nbsp;Groovy scriptTasks with security sandbox.\u003c/p\u003e"
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          ],
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      ],
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            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
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      ],
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        {
          "descriptions": [
            {
              "cweId": "CWE-653",
              "description": "CWE-653 Improper Isolation or Compartmentalization",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T14:20:06.824Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
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      "references": [
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          "tags": [
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          "url": "https://lists.apache.org/thread/vdq0tk6ylffz6trbgbllj9kb1ndzff7k"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask",
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  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-53405",
    "datePublished": "2026-07-20T14:20:06.824Z",
    "dateReserved": "2026-06-09T09:39:17.153Z",
    "dateUpdated": "2026-07-21T14:57:26.644Z",
    "state": "PUBLISHED"
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