{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.8.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6345e05baa634fbd60ace0134228cb6af4cfdaef"
            }
          ],
          "repo": "https://github.com/libexpat/libexpat",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-331"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41080.json"
  },
  "details": "libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.",
  "id": "CVE-2026-41080",
  "modified": "2026-07-16T03:31:08.893013296Z",
  "published": "2026-04-16T16:52:01.177Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/26/1"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/04/26/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41080.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41080"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libexpat/libexpat/issues/47"
    },
    {
      "type": "FIX",
      "url": "https://github.com/libexpat/libexpat/pull/1183"
    },
    {
      "type": "ARTICLE",
      "url": "https://blog.hartwork.org/posts/expat-2-8-0-released/"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}