Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
{
"license": "CC-BY-4.0",
"sources": [
{
"modified": "2026-06-17T04:30:53.100Z",
"database_specific": {
"status": "Modified"
},
"published": "2022-01-24T02:15:06.733Z",
"imported": "2026-07-17T21:02:43.374Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-23852",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23852",
"id": "CVE-2022-23852"
}
]
}