CVE-2026-14891 | Nomad vulnerable to sandbox escape in Docker task driver

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 Last update: 2026-07-09 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-14891 is rated Moderate Risk (43/100): CVSS High severity, with low exploitation likelihood (EPSS 0.32%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-14891

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-09 — 0.32% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-14891

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.7 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 5.8 [email protected]

Weakness enumeration for CVE-2026-14891

GitHub Security Advisory for CVE-2026-14891

GHSA-5c56-jfhx-4gcm · Severity: high — HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver...

OS Trackers for CVE-2026-14891

vendor priority summary link
ubuntu medium CVE-2026-14891 medium priority: Ubuntu including 1 source packages (nomad), 6 status rows across 6 suites (bionic, focal, jammy, noble, resolute, upstream): DNE 3, needs-triage 3. https://ubuntu.com/security/CVE-2026-14891

Affected software / configurations for CVE-2026-14891

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-14891

cvelogic Threat Intelligence