{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.1.0"
              },
              {
                "fixed": "1.0.2"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "ed041ca21de7863e0e22a09276fccce1fc3d17b5"
            },
            {
              "fixed": "5cc6dda28d7669e5d282bfed8891ef40fb3c8fdd"
            },
            {
              "fixed": "3f7ab7f148e814c57cb7de1e2bb11b9a05b7814b"
            }
          ],
          "repo": "https://github.com/eclipse-ankaios/ankaios",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "eclipse",
    "cwe_ids": [
      "CWE-276",
      "CWE-367",
      "CWE-379"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86836.json"
  },
  "details": "In Eclipse Ankaios versions 0.1.0 through 1.0.2, the agent creates workload files and Control Interface named pipes (FIFOs) under a predictable path derived from the agent name and a hash of the workload's runtime configuration. If a directory or FIFO already exists at that path when the agent (re)starts, the agent reuses it based only on an existence and/or file-type check, without validating its owner or permissions. A local, unprivileged user with write access to the same base directory (by default under `$TMPDIR/ankaios`, e.g. shared `/tmp`) can pre-create this path hierarchy, including the two Control Interface FIFOs, before the agent starts. The agent then treats the attacker-owned FIFOs as the legitimate Control Interface for the targeted workload. The attacker can complete the Control Interface handshake and issue requests using that workload's configured `controlInterfaceAccess` permissions, allowing impersonation of the workload and, depending on its configured permissions, unauthorized reading and/or modification of the cluster's desired state.",
  "id": "CVE-2026-86836",
  "modified": "2026-09-18T03:30:46.539525028Z",
  "published": "2026-09-14T17:44:56.384Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/eclipse-ankaios/ankaios/releases/tag/v1.0.3"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/280"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86836.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86836"
    },
    {
      "type": "FIX",
      "url": "https://github.com/eclipse-ankaios/ankaios/pull/799"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H",
      "type": "CVSS_V4"
    }
  ]
}