Certigna: Subscriber certificate with EKU clientAuth only
Certigna Services CA issued client authentication certificates that only included the clientAuth Extended Key Usage (EKU) without the required serverAuth EKU or CA/Browser Forum reserved policy identifier. This raised compliance concerns with the TLS Baseline Requirements. Following a notification from Sectigo, Certigna suspended the issuance of these certificates and initiated a mass revocation of affected certificates. All impacted subscribers were contacted, and the transition to a new dedicated client authentication CA was expedited. The incident has been resolved with all corrective actions completed.
- Incident identified and certificate issuance suspended.
- Mass revocation of affected certificates executed.
- Incident closure summary provided.