Is port 8086 (InfluxDB HTTP API) dangerous?

Port 8086 is classified as critical risk and should not be exposed to the public internet. It transmits data without encryption, making it vulnerable to eavesdropping and credential theft.

Should port 8086 be open on my firewall?

No, port 8086 should not be open to the public internet. Block it at the firewall and use encrypted alternatives such as SSH, SFTP, or HTTPS instead.

What transport protocol does port 8086 use?

Port 8086 (InfluxDB HTTP API) uses the TCP transport protocol and falls under the Database category.

:8086 (TCP)

InfluxDB HTTP API

Critical Risk

TCP — Database

Port Overview

Port Number 8086

Service Name InfluxDB HTTP API

Transport Protocol TCP

Category Database

Security Risk Critical

Port Range Registered (1024-49151)

What is Port 8086?

Port 8086 is the default HTTP API port for InfluxDB, a popular open-source time series database designed for metrics, events, and analytics. The InfluxDB HTTP API accepts write and query requests for time-stamped data from monitoring agents, IoT devices, and applications. Unauthenticated InfluxDB instances have been widely exploited for data theft and cryptomining.

TCP Database Commonly Used

Security Considerations

Port 8086 (InfluxDB HTTP API) is classified as critical risk. This port should not be exposed to the public internet. The service transmits data without encryption, making it vulnerable to eavesdropping, credential theft, and man-in-the-middle attacks.

Recommendation: Block this port at the firewall. Use encrypted alternatives (SSH, SFTP, HTTPS) instead.

Related Ports — Database

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Related Terms

ASN BGP Hijack Data Center Domain Name Dual Stack Internet Exchange Point (IXP)