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CVE-2026-14891

Nomad vulnerable to sandbox escape in Docker task driver

HIGH
8.7
CVSS Score
Published: July 8, 2026 at 08:09 PM UTC
Updated: July 9, 2026 at 04:41 PM UTC
1 product affected across 1 vendorNomad

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Severity
HIGH8.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nomad· Hashicorp
60%
0.4.1 ≤ v < 2.0.40.4.1
Affected range stops below 2.0.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHHashiCorp
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-59

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