Linuxfabrik monitoring-plugins: SSRF and auth-token disclosure via unvalidated @odata.id link in redfish-* plugins

{
  "id": "a6f37a66245ecff467b4a228c7c567fecefb7a2480c668b0b00bc38ef224304c",
  "url": "https://osv.dev/vulnerability/CVE-2026-67436",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Linuxfabrik monitoring-plugins: SSRF and auth-token disclosure via unvalidated @odata.id link in redfish-* plugins",
    "summary": "Linuxfabrik monitoring-plugins provides Python monitoring plugins for Icinga, Nagios, and related monitoring systems. In 6.0.0 and earlier, the redfish-* plugins built request URLs by concatenating an operator-supplied base URL with response-supplied @odata.id links, allowing a malicious or compromised BMC to redirect authenticated Redfish requests and disclose X-Auth-Token or HTTP Basic credentials.",
    "evidence": "osv:CVE-2026-67436",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-67436",
      "aliases": [
        "CVE-2026-67436",
        "GHSA-96fx-pqc3-28xv"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/linuxfabrik/monitoring-plugins",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ffb0a81308cbfc018da857a89e0d07a67bf89fc3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ffb0a81308cbfc018da857a89e0d07a67bf89fc3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.0.0",
            "v5.2.0",
            "v5.1.0",
            "v5.0.0",
            "v4.1.0",
            "v4.0.0",
            "v3.0.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v1.2.0.11",
            "2024060401",
            "2024052901",
            "2023112901",
            "2023051201",
            "2023030801",
            "2022072001",
            "2022030201",
            "2022022801",
            "2021101401",
            "2021061501",
            "2021021701",
            "2021021601",
            "2020122401",
            "2020112001",
            "2020111901",
            "2020111801",
            "2020102301",
            "2020061901",
            "2020052801",
            "2020042001",
            "2020041501",
            "2020031201",
            "2020022801"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67436.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.398833988Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67436.json",
        "https://github.com/Linuxfabrik/monitoring-plugins/security/advisories/GHSA-96fx-pqc3-28xv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-67436",
        "https://github.com/Linuxfabrik/monitoring-plugins/commit/ffb0a81308cbfc018da857a89e0d07a67bf89fc3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-20",
          "CWE-200",
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67436.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-67436",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489825,
  "published_at": "2026-07-29T19:43:35.819+00:00"
}