The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.
{
"nvd_published_at": "2017-02-17T02:59:00Z",
"cwe_ids": [],
"severity": "CRITICAL",
"github_reviewed_at": "2024-04-25T21:00:15Z",
"github_reviewed": true
}