In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.
{
"license": "CC-BY-4.0",
"sources": [
{
"modified": "2026-04-03T16:10:23.730Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-35386",
"id": "CVE-2026-35386",
"published": "2026-04-02T17:16:27.623Z",
"imported": "2026-04-09T14:56:26.901Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35386"
},
{
"modified": "2026-04-02T18:31:38Z",
"url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-18400",
"id": "EUVD-2026-18400",
"published": "2026-04-02T18:31:38Z",
"imported": "2026-04-09T14:56:20.710Z",
"html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18400"
}
]
}