2448457 - Connection to SFTP Server is failing with "reject HostKey" or "HostKey has been changed" error

• In Cloud Integration (former CPI), message processing is failing with the following error:
  org.apache.camel.component.file.GenericFileOperationFailedException: Cannot connect to sftp://<SFTP USER>@<SFTP HOST NAME>:<SFTP PORT>, cause: com.jcraft.jsch.JSchException: reject HostKey: <SFTP HOST NAME>
  or
  com.jcraft.jsch.JSchException: HostKey has been changed: <SFTP HOST NAME> 
  

• SSH Connection Test fails with similar error, when "Host Key Verification" option is enabled.
  
  
• This issue may also occur after the July 2023 update to the following Cloud Integration Versions
  
  • Neo: 5.49.x
  • CF: 6.41.x

  For more details, please see:
  SAP KBA 3300095 FAQ: Potential Incompatibility in SFTP connectivity in CPI

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

• Cloud Integration
• SAP Integration Suite

Cloud Integration, CPI, SFTP, hostkey, reject hostkey, hostkey has been changed, hci, tenant, IFlow, Integration Flow, deployment, SAP Cloud Platform Integration, SSH Outbound Connection Test, com.jcraft.jsch.JSchException: reject HostKey, org.apache.camel.component.file.GenericFileOperationFailedException, known hosts, known_hosts, known.hosts, SAP CPI, CPI, SCPI, SAP Cloud Integration, SAP Integration Suite , KBA , LOD-HCI-PI-CON-SOAP , SOAP Adapter , LOD-HCI-PI-RT , Integration Runtime , Problem