ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.
{
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28531",
"id": "CVE-2023-28531",
"modified": "2025-11-04T19:15:41.430Z",
"published": "2023-03-17T04:15:14.553Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-28531",
"imported": "2026-04-09T14:56:18.856Z"
}
],
"license": "CC-BY-4.0"
}