Improper Authentication in HashiCorp Consul

Published: 2021-08-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-37219
Exploitation vector Network
Public exploit N/A
Vulnerable software
Server applications / Other server solutions

Vendor HashiCorp

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU56146

Risk: Medium


CVE-ID: CVE-2021-37219

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can use a specially crafted raft requests to bypass authentication process and gain unauthorized access to the application.


Install updates from vendor's website.

Vulnerable software versions

Consul: 1.8.0 - 1.8.14, 1.9.0 - 1.9.8, 1.10.0 - 1.10.1

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?