xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.
{
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56411",
"database_specific": {
"status": "Analyzed"
},
"modified": "2026-06-23T16:16:36.417Z",
"id": "CVE-2026-56411",
"published": "2026-06-21T17:16:44.523Z",
"imported": "2026-08-09T01:17:12.011Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-56411"
}
],
"license": "CC-BY-4.0"
}