In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.
{
"sources": [
{
"imported": "2026-07-17T22:22:40.776Z",
"modified": "2026-06-17T04:33:48.993Z",
"published": "2022-02-24T15:15:32.040Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25638",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-25638",
"database_specific": {
"status": "Modified"
},
"id": "CVE-2022-25638"
}
],
"license": "CC-BY-4.0"
}