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.
Published: 2026-07-08
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in the Docker task driver of HashiCorp Nomad and Nomad Enterprise allows a job submitter to bind‑mount an arbitrary host path inside a container even when volume bind mounts are disabled. This capability permits direct read or write access to host files, exposing confidential data and potentially altering system state. The vulnerability stems from a path‑traversal weakness documented as CWE‑59.

Affected Systems

All releases of Nomad Community Edition before version 2.0.4 and all releases of Nomad Enterprise before version 1.11.8, before version 1.10.14, or before version 2.0.4 are affected. The patch versions are Nomad CE 2.0.4+, Nomad Enterprise 1.11.8+, 1.10.14+, and 2.0.4+

Risk and Exploitability

The CVSS score of 8.7 classifies the issue as high severity, indicating significant impact if exploited. The EPSS score of < 1% shows a very low probability of exploitation, and the vulnerability is not listed in CISA KEV, implying no confirmed public exploits. The attack vector requires the attacker to submit a Nomad job; upon execution, the attacker can mount host directories within the container, enabling direct file access on the host.

Generated by OpenCVE AI on July 29, 2026 at 13:33 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to 2.0.4 or newer.
  • Upgrade to Nomad Enterprise 1.11.8 or newer (or 1.10.14 or newer for the older release line).
  • If an upgrade cannot be performed immediately, block job submissions from untrusted users until the patch is applied.

Generated by OpenCVE AI on July 29, 2026 at 13:33 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 08 Jul 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp nomad
Hashicorp nomad Enterprise
Vendors & Products Hashicorp
Hashicorp nomad
Hashicorp nomad Enterprise

Wed, 08 Jul 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 08 Jul 2026 20:15:00 +0000

Type Values Removed Values Added
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.
Title Nomad vulnerable to sandbox escape in Docker task driver
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N'}


Subscriptions

Hashicorp Nomad Nomad Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: HashiCorp

Published:

Updated: 2026-07-09T03:55:54.984Z

Reserved: 2026-07-06T18:05:48.932Z

Link: CVE-2026-14891

cve-icon Vulnrichment

Updated: 2026-07-08T20:35:56.786Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-26T17:15:04Z

Weaknesses
  • CWE-59

    Improper Link Resolution Before File Access ('Link Following')