{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.10.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060"
            },
            {
              "fixed": "245283237171400672a9ad914f5785ba8bc0fa5c"
            }
          ],
          "repo": "https://github.com/netdata/netdata",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qwh9-pq27-993w"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-502",
      "CWE-73"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83603.json"
  },
  "details": "Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket_path from the low-privileged netdata service account. The account can direct root fail2ban-client to a malicious UNIX socket, and fail2ban/client/csocket.py CSocket.receive() passes the returned data to pickle.loads(), allowing attacker-controlled code to execute as root on systems with fail2ban-client installed. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.",
  "id": "CVE-2026-83603",
  "modified": "2026-09-25T03:30:23.504622477Z",
  "published": "2026-09-22T17:01:56.465Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netdata/netdata/releases/tag/v2.10.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/83xxx/CVE-2026-83603.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83603"
    },
    {
      "type": "FIX",
      "url": "https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060"
    },
    {
      "type": "FIX",
      "url": "https://github.com/netdata/netdata/pull/22745"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Netdata: Local Root via ndsudo Arbitrary socket_path → fail2ban-client Pickle RCE"
}