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Critical

MISP remote code execution via arbitrary rdkafka configuration path

Type: advisorySources: OSV

MISP allowed an authenticated site administrator to set the Kafka_rdkafka_config setting to an arbitrary filesystem path. MISP subsequently parsed the referenced INI file and passed its options to rdkafka. A crafted attacker-controlled configuration file could use rdkafka options such as plugin.library.paths to load an external library, resulting in arbitrary code execution with the privileges of the MISP process. An attacker could leverage a MISP-writable location, such as an uploaded file or administrative image, to host the malicious configuration file. The issue is fixed by restricting the setting to absolute .ini files located only in approved configuration directories outside the webroot and MISP upload targets.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-56447
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 02:08 UTC · Revision 1

Source evidence

MISP remote code execution via arbitrary rdkafka configuration path

core-osv · Original source

Published 22 Jun 2026, 12:39 UTC

MISP allowed an authenticated site administrator to set the Kafka_rdkafka_config setting to an arbitrary filesystem path. MISP subsequently parsed the referenced INI file and passed its options to rdkafka. A crafted attacker-controlled configuration file could use rdkafka options such as plugin.library.paths to load an external library, resulting in arbitrary code execution with the privileges of the MISP process. An attacker could leverage a MISP-writable location, such as an uploaded file or administrative image, to host the malicious configuration file. The issue is fixed by restricting the setting to absolute .ini files located only in approved configuration directories outside the webroot and MISP upload targets.

osv:CVE-2026-56447
Complete source record
{
  "id": "ed0cd7d144782193964a353e021ab6cea322633546f202a8911f93553fed95b7",
  "url": "https://osv.dev/vulnerability/CVE-2026-56447",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MISP remote code execution via arbitrary rdkafka configuration path",
    "summary": "MISP allowed an authenticated site administrator to set the Kafka_rdkafka_config setting to an arbitrary filesystem path. MISP subsequently parsed the referenced INI file and passed its options to rdkafka. A crafted attacker-controlled configuration file could use rdkafka options such as plugin.library.paths to load an external library, resulting in arbitrary code execution with the privileges of the MISP process. An attacker could leverage a MISP-writable location, such as an uploaded file or administrative image, to host the malicious configuration file. The issue is fixed by restricting the setting to absolute .ini files located only in approved configuration directories outside the webroot and MISP upload targets.",
    "evidence": "osv:CVE-2026-56447",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-56447",
      "aliases": [
        "CVE-2026-56447"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/misp/misp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bc28dbe9c6c08a705330bea64a4c7b4bca010934"
                },
                {
                  "fixed": "9600d486ccfc98388e13897fd954350cebac5fb0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5.42"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9600d486ccfc98388e13897fd954350cebac5fb0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
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            }
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56447.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.886579662Z",
      "provider": "osv",
      "references": [
        "https://github.com/MISP/MISP/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56447.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56447",
        "https://github.com/MISP/MISP/commit/9600d486ccfc98388e13897fd954350cebac5fb0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-829"
        ],
        "cna_assigner": "CIRCL",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56447.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-56447",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509384,
  "published_at": "2026-06-22T12:39:31.309+00:00"
}