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              "content": {
                "id": "CVE-2026-82958",
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                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T12:52:37.950498Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          "dateUpdated": "2026-09-02T12:53:05.342Z",
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            "tags": [
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            "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/764"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Eclipse Ditto",
          "vendor": "Eclipse Foundation",
          "versions": [
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              "lessThanOrEqual": "3.9.6",
              "status": "affected",
              "version": "1.3.0",
              "versionType": "semver"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mohamed Lemine Ahmed Jidou"
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      ],
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              "value": "\u003cp\u003eIn Eclipse Ditto versions [1.3.0, 3.9.6], the \u003ccode\u003eImplicitThingCreationMessageMapper\u003c/code\u003e of the connectivity service builds a \u003ccode\u003eCreateThing\u003c/code\u003e command by substituting placeholder values (e.g. \u003ccode\u003e{{ header:device_id }}\u003c/code\u003e) resolved from inbound message headers into a pre-configured JSON \"thing\" template as raw, un-escaped strings, and then parses the resulting string as JSON. Because the placeholder engine performs no JSON escaping and is unaware of the surrounding JSON string context, a resolved value containing a double-quote character can break out of its string and inject additional JSON structure.\u003c/p\u003e\n\u003cp\u003eWhen a connection is configured to use this mapper with a template that reflects a header whose value a publishing device can control (for example an MQTT 5 user property, an AMQP 1.0 application property, or a Kafka record header), an attacker able to publish on that connection can inject an inline \u003ccode\u003e_policy\u003c/code\u003e object. The inline policy overrides the administrator-configured \u003ccode\u003epolicyId\u003c/code\u003e, letting the attacker assign an arbitrary access-control policy to the newly created digital twin \u2014 gaining full read/write access to it and potentially revoking the legitimate owner\u0027s access, with no administrator interaction.\u003c/p\u003e\n\u003cp\u003eExploitation requires all of the following: the connection uses the (non-default) ImplicitThingCreation mapper; its template reflects an attacker-controllable header; and, for the policy-override impact, the connection\u0027s authorization subjects are permitted to create policies (the default). Deployments that restrict the connection\u0027s subjects to thing creation only via the \u003ccode\u003eentity-creation\u003c/code\u003e configuration are not affected by the policy-override impact.\u003c/p\u003e"
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          "value": "In Eclipse Ditto versions [1.3.0, 3.9.6], the ImplicitThingCreationMessageMapper of the connectivity service builds a CreateThing command by substituting placeholder values (e.g. {{ header:device_id }}) resolved from inbound message headers into a pre-configured JSON \"thing\" template as raw, un-escaped strings, and then parses the resulting string as JSON. Because the placeholder engine performs no JSON escaping and is unaware of the surrounding JSON string context, a resolved value containing a double-quote character can break out of its string and inject additional JSON structure.\n\n\n\n\nWhen a connection is configured to use this mapper with a template that reflects a header whose value a publishing device can control (for example an MQTT 5 user property, an AMQP 1.0 application property, or a Kafka record header), an attacker able to publish on that connection can inject an inline _policy object. The inline policy overrides the administrator-configured policyId, letting the attacker assign an arbitrary access-control policy to the newly created digital twin \u2014 gaining full read/write access to it and potentially revoking the legitimate owner\u0027s access, with no administrator interaction.\n\n\n\n\nExploitation requires all of the following: the connection uses the (non-default) ImplicitThingCreation mapper; its template reflects an attacker-controllable header; and, for the policy-override impact, the connection\u0027s authorization subjects are permitted to create policies (the default). Deployments that restrict the connection\u0027s subjects to thing creation only via the entity-creation configuration are not affected by the policy-override impact."
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      ],
      "impacts": [
        {
          "capecId": "CAPEC-137",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-137 Parameter Injection"
            }
          ]
        },
        {
          "capecId": "CAPEC-1",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "value": "GENERAL"
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          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336 Improper neutralization of special elements used in a template engine",
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              "type": "CWE"
            }
          ]
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          "descriptions": [
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              "cweId": "CWE-116",
              "description": "CWE-116 Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
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          "descriptions": [
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              "cweId": "CWE-74",
              "description": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-09-02T10:12:49.085Z",
        "orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
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          "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/764"
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        {
          "url": "https://github.com/eclipse-ditto/ditto/security/advisories/GHSA-cgfq-3fv9-5c44"
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      "source": {
        "discovery": "UNKNOWN"
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    "cveId": "CVE-2026-82958",
    "datePublished": "2026-09-02T10:12:49.085Z",
    "dateReserved": "2026-08-31T12:47:29.479Z",
    "dateUpdated": "2026-09-02T12:53:05.342Z",
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