A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.
{
"sources": [
{
"id": "CVE-2026-0990",
"published": "2026-01-15T15:15:52.503Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0990",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-0990",
"modified": "2026-06-30T20:18:46.463Z",
"imported": "2026-08-09T06:30:35.826Z",
"database_specific": {
"status": "Analyzed"
}
}
],
"license": "CC-BY-4.0"
}