CVE-2026-14891

HIGH

Nomad vulnerable to sandbox escape in Docker task driver

Title source: cna

Description

HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver that may allow a job submitter to bind-mount a host path into a container even when volume bind mounts are disabled, potentially leading to reading and writing files on the host. This vulnerability, CVE-2026-14891, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.

References (1)

Core 1

Core References

https://discuss.hashicorp.com/t/hcsec-2026-21-nomad-vulnerable-to-sandbox-escape-in-docker-task-driver/77561

Scores

CVSS v3 8.7

EPSS 0.0032

EPSS Percentile 23.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-59

Status published

Products (2)

HashiCorp/Nomad 0.4.1 - 2.0.4

HashiCorp/Nomad Enterprise 0.4.1 - 2.0.4

Published Jul 08, 2026

Tracked Since Jul 09, 2026