libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2023-52426",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-52426",
"published": "2024-02-04T20:15:46.120Z",
"imported": "2025-10-10T21:54:56.859Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52426",
"modified": "2025-06-17T16:15:32.360Z"
}
]
}