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TI-2026-12547 Aliases CVE-2026-14891GHSA-5c56-jfhx-4gcm

Nomad vulnerable to sandbox escape in Docker task driver

Priority MEDIUM 40CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00487 42nd percentileScored 2026-11-07
Fix Fixed Nomad (HashiCorp): 2.0.4Nomad Enterprise (HashiCorp): 2.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HashiCorpNomad0.4.1 to before 2.0.42.0.4Patch availableCNA
HashiCorpNomad Enterprise0.4.1 to before 2.0.42.0.4Patch availableCNA
  • Nomad VendorHashiCorp Affected 0.4.1 to before 2.0.4 Fixed in 2.0.4 Patch available CNA
  • Nomad Enterprise VendorHashiCorp Affected 0.4.1 to before 2.0.4 Fixed in 2.0.4 Patch available CNA

Remediation

  • Fix · CNA Nomad (HashiCorp) Fixed in 2.0.4
  • Fix · CNA Nomad Enterprise (HashiCorp) Fixed in 2.0.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    HashiCorp Nomad, Nomad Enterprise 2.0.4

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-12152 Nomad Docker driver Linux host namespace bypassPriority LOW 34
    • TI-2026-12552 Nomad vulnerable to cross-namespace host volume claim deletionPriority LOW 19
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14891
  2. 2026-10-03 Alias added: GHSA-5c56-jfhx-4gcm

References

Other 1

  • TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
  • TI-2021-18437 HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4… CVSS 3.1HIGH 8.8
  • TI-2026-06570 Nomad vulnerable to path traversal in dynamic host volume which may lead to code execution CVSS 3.1HIGH 8.8
  • TI-2020-17753 The official Consul Docker images 0.7.1 through 1.4.2 contain a blank password for a root… CVSS 3.1CRITICAL 9.8
  • TI-2026-13641 consul-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0
  • TI-2026-13778 terraform-mcp-server vulnerable to cross-tenant credential reuse in streamable-HTTP stateless mode CVSS 3.1CRITICAL 10.0
See all 246 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences