CVE-2021-41865

Publication date 7 October 2021

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

HashiCorp Nomad and Nomad Enterprise 1.1.1 through 1.1.5 allowed authenticated users with job submission capabilities to cause denial of service by submitting incomplete job specifications with a Consul mesh gateway and host networking mode. Fixed in 1.1.6.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nomad	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

How can I get the fixes?
What do statuses mean?

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

MITRE
NVD
Launchpad
Debian

Other references

https://discuss.hashicorp.com/t/hcsec-2021-26-nomad-denial-of-service-via-submission-of-incomplete-job-specification-using-consul-mesh-gateway-host-network/30311
https://github.com/hashicorp/nomad/issues/11243
https://github.com/hashicorp/nomad/pull/11257
https://www.cve.org/CVERecord?id=CVE-2021-41865