Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization during the SSH certificate revocation when the SSHPOP provisioner is configured. An attacker can revoke SSH certificates without proper authorization by exploiting insufficient checks during the revocation proces...

CVE-2025-66406

CVE-2025-66406 affects Step CA (github.com/smallstep/certificates). Before version 0.29.0, there is an improper authorization check for SSH certificate revocation, impacting deployments configured with the SSHPOP provisioner. The root cause is inadequate authorization on revocation requests; the ...

step-ca Has Improper Authorization Check for SSH Certificate Revocation

Summary An authorized attacker can bypass authorization checks and revoke any SSH certificate issued by Step CA by using a valid revocation token. Details Step CA users can obtain SSH certificates from a few provisioners. The SSHPOP provisioner allows revocation of the SSH certificate preventing...