CVE-2026-14373

Nomad Docker driver Linux host namespace bypass

State: Published
Severity: 7.7 High
Published: Jul 8, 2026
Updated: Jul 8, 2026
Reserved: Jul 1, 2026

Description

HashiCorp Nomad and Nomad Enterprise did not enforce the allow_privileged restriction for the Docker task driver's host namespace mode options. This may allow an authenticated job submitter to run a container in a host namespace and access information belonging to the host or to other workloads on the same client. This vulnerability, CVE-2026-14373, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.

Scores

CVSS	Score	Vector	Source
3.1	7.7 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N	HashiCorp

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
NomadHashiCorp	0.4.1 to before 2.0.4Affected
Nomad EnterpriseHashiCorp	0.4.1 to before 2.0.4Affectedfrom 1.11.8Not affectedfrom 1.10.14Not affected

References

https://discuss.hashicorp.com/t/hcsec-2026-19-nomad-docker-driver-vulnerable-to-host-namespace-bypass-on-linux/77557

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