{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.14.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f6f59ac29d8b1222254e938672a0d99098fd800"
            },
            {
              "fixed": "ff30348a1b664a1cb7c83045b87d8822fd2c43ef"
            }
          ],
          "repo": "https://github.com/traccar/traccar",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6qh3-234v-r254"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-674"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52852.json"
  },
  "details": "Traccar is an open source GPS tracking system. Prior to 6.14.0, an authenticated user with permission to manage groups and request reports can create a cyclic group-parent hierarchy and request a trips or stops report for a device in that hierarchy. org.traccar.api.resource.GroupResource permits the parent cycle, while org.traccar.helper.model.AttributeUtil.lookup follows group parents without cycle detection, a visited set, or a depth limit. The storage-backed lookup reached through TripsConfig. and ReportUtils.slowTripsAndStops never terminates, pins a Jetty worker at high CPU after the client disconnects, and can exhaust the web/API worker pool when requests are repeated. The position-ingestion cache-backed path is not part of the confirmed affected scope. This issue is fixed in 6.14.0.",
  "id": "CVE-2026-52852",
  "modified": "2026-09-19T03:30:38.288373764Z",
  "published": "2026-09-17T18:32:07.436Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/traccar/traccar/releases/tag/v6.14.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52852.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/traccar/traccar/security/advisories/GHSA-6qh3-234v-r254"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52852"
    },
    {
      "type": "FIX",
      "url": "https://github.com/traccar/traccar/commit/8f6f59ac29d8b1222254e938672a0d99098fd800"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Traccar: Uncontrolled Infinite Loop DoS via Group Parent Cycle"
}