HashiCorp Nomad/Nomad Enterprise up to 2.0.1 Docker Task Driver escape output

Summaryinfo

A vulnerability, which was classified as critical, has been found in HashiCorp Nomad and Nomad Enterprise. This impacts an unknown function of the component Docker Task Driver. The manipulation leads to escape output. This vulnerability is traded as CVE-2026-14891. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in HashiCorp Nomad and Nomad Enterprise and classified as critical. This issue affects an unknown functionality of the component Docker Task Driver. The manipulation with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at discuss.hashicorp.com. The identification of this vulnerability is CVE-2026-14891 since 07/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.0.4 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• HashiCorp

Name

• Nomad
• Nomad Enterprise

Version

• 0.10.3
• 0.10.5
• 0.10.6
• 0.10.8
• 0.11.5
• 0.11.7
• 0.12.6
• 0.12.8
• 0.12.10
• 0.12.12
• 1.0.3
• 1.0.5
• 1.0.10
• 1.0.14
• 1.0.17
• 1.0.18
• 1.1.0 RC1
• 1.1.3
• 1.1.4
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.11
• 1.1.12
• 1.1.14
• 1.2.0
• 1.2.1
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.13
• 1.2.16
• 1.3.0
• 1.3.1
• 1.3.5
• 1.3.6
• 1.3.9
• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.4
• 1.4.6
• 1.4.11
• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.6
• 1.5.7
• 1.5.14
• 1.6.0
• 1.6.6
• 1.6.7
• 1.6.13
• 1.6.14
• 1.7.3
• 1.7.4
• 1.7.9
• 1.7.10
• 1.7.11
• 1.8.1
• 1.8.2
• 1.8.3
• 1.9.2
• 1.9.6
• 1.10.2
• 1.10.14
• 1.11.8
• 2.0.1

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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