{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.21.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "be2b5fde82d9c8874f3d19328bdfe3b6962dc67b"
            },
            {
              "fixed": "4755f8053928dce18a61db8fec71b69c74f786cb"
            }
          ],
          "repo": "https://github.com/onnx/onnx",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3r9x-f23j-gc73"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-23",
      "CWE-61"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27489.json"
  },
  "details": "Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, a path traversal vulnerability via symlink allows to read arbitrary files outside model or user-provided directory. This issue has been patched in version 1.21.0.",
  "id": "CVE-2026-27489",
  "modified": "2026-07-08T05:37:14.583360291Z",
  "published": "2026-04-01T17:33:51.281Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27489.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:24977"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-27489"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27489.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27489"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453929"
    },
    {
      "type": "FIX",
      "url": "https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ONNX: Path Traversal via Symlink"
}