What is CVE-2026-14891?

CVE-2026-14891 is a high-severity vulnerability in Hashicorp Nomad, classified under Improper Link Resolution Before File Access. CVSS score: 8.7/10. Published 2026-07-08.

How severe is CVE-2026-14891?

High severity. CVSS v3 base score is 8.7 out of 10.

Vulnerability in Hashicorp Nomad

CVE-2026-14891

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.

EPSS: 0.003 (24.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.

Affected products

Hashicorp Nomad — versions 0.4.1
Hashicorp Nomad Enterprise — versions 0.4.1

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

security@hashicorp.com

Frequently asked questions

What is CVE-2026-14891?: CVE-2026-14891 is a high-severity vulnerability in Hashicorp Nomad, classified under Improper Link Resolution Before File Access. CVSS score: 8.7/10. Published 2026-07-08.
How severe is CVE-2026-14891?: High severity. CVSS v3 base score is 8.7 out of 10.