Intel

AIKIDO-2026-10284

github.com/hashicorp/consul is vulnerable to Denial of Service (DoS)

Denial of Service (DoS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Mar 4, 2026

26

Low Risk

This Affects:

GOgithub.com/hashicorp/consul
0.1.0 - 1.22.3
Fixed in 1.22.5
Are you affected? Scan for Free

TL;DR

Affected versions of this package do not enforce strict HTTP server timeout controls, allowing connections to remain open indefinitely and increasing exposure to Slowloris-style denial-of-service attacks. Without properly configured read, header, write, and idle timeouts, an attacker can open numerous concurrent connections and deliberately send partial or slow HTTP requests, exhausting server threads or file descriptors and degrading availability. This can be exploited by maintaining many half-open or slow-drip connections against the agent or connect proxy (including pprof endpoints), ultimately causing resource starvation and service disruption.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

github.com/hashicorp/consul is vulnerable to Denial of Service (DoS) in versions 0.1.0 - 1.22.3.

How to fix this

Upgrade the github.com/hashicorp/consul library to a patch version.