{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.27.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12396be6cc2bdd61c2a2d7df3aaf9d7f6baac79f"
            }
          ],
          "repo": "https://github.com/openremote/openremote",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q2gm-frx3-2qjr"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67310.json"
  },
  "details": "OpenRemote (org.openremote:openremote) versions \u003c= 1.26.2 contain an insecure direct object reference vulnerability in the setAssetLinks endpoint of AlarmResourceImpl. The realm access check validates only a single realm obtained via realms.stream().findFirst() on a HashSet of realms from the request, rather than all realms. Because HashSet iteration order is non-deterministic, an authenticated attacker who includes alarm-asset links from both their own realm and a victim realm can, with roughly 50% probability per request (retryable), persist cross-tenant links and disclose victim asset names (returned via @Formula fields) through GET requests on the attacker's own alarm. Fixed in 1.27.0.",
  "id": "CVE-2026-67310",
  "modified": "2026-08-03T03:30:24.642996831Z",
  "published": "2026-08-01T12:22:17.959Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67310.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/openremote/openremote/security/advisories/GHSA-q2gm-frx3-2qjr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67310"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/openremote-before-cross-tenant-idor-via-setassetlinks"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "openremote before 1.27.0 Cross-Tenant IDOR via setAssetLinks"
}