Internet-Security raven logo internet-security.com

TCP 8501

ProtocolTCP
Port8501
Labels

Synopsis

  • Streamlit runs its web server on TCP 8501 by default (e.g., local apps at http://localhost:8501 and many Streamlit Cloud deployments).
  • TensorFlow Serving exposes its REST/HTTP inference API on TCP 8501 by default (the official tensorflow/serving Docker image maps 8501 for REST).
  • HashiCorp Consul uses TCP 8501 for its HTTPS API and web UI when TLS is enabled (HTTP is on 8500, HTTPS on 8501 in typical clusters).
  • Adobe ColdFusion’s built-in web server uses 8500 for the first instance and commonly 8501 for additional instances, so CF developer/test servers are often seen on 8501.
  • Security note: This port is frequently scanned; exposed Consul or ColdFusion services on 8500/8501 have been abused for unauthorized access and remote code execution when ACLs/TLS or patches are missing.

Observed activity

Last 30 days Detailed chart

More information