In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. This affects inp.c and util.c.
{
"license": "CC-BY-4.0",
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13636",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-13636",
"published": "2019-07-17T21:15:11.797Z",
"id": "CVE-2019-13636",
"imported": "2026-07-17T21:16:00.176Z",
"modified": "2026-06-17T02:17:07.513Z",
"database_specific": {
"status": "Modified"
}
}
]
}