{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:openmcdf:openmcdf:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.3"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fd0775c58134848a587424c4a9d6c2403f628e19"
            },
            {
              "fixed": "24f445a557fc4f46461cf6d02d296cce16c293a0"
            }
          ],
          "repo": "https://github.com/openmcdf/openmcdf",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jxpf-xq2m-q525"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41511.json"
  },
  "details": "OpenMcdf is a fully .NET / C# library to manipulate Compound File Binary File Format files, also known as Structured Storage. Prior to version 3.1.3, OpenMcdf does not detect cycles in the directory entry red-black tree of a Compound File Binary (CFB) document. A crafted CFB file with a cycle in the LeftSiblingID / RightSiblingID chain causes Storage.EnumerateEntries() and Storage.OpenStream() to loop indefinitely, consuming the calling thread with no possibility of recovery via try/catch. This issue has been patched in version 3.1.3.",
  "id": "CVE-2026-41511",
  "modified": "2026-07-15T01:48:58.711280842Z",
  "published": "2026-05-08T18:52:39.438Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openmcdf/openmcdf/releases/tag/v3.1.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41511.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/openmcdf/openmcdf/security/advisories/GHSA-jxpf-xq2m-q525"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41511"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openmcdf/openmcdf/commit/24f445a557fc4f46461cf6d02d296cce16c293a0"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenMcdf has an Infinite loop DoS via crafted CFB directory cycle"
}