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CVE-2026-14896— Nomad vulnerable to cross-namespace host volume claim deletion

Quick assessment

Affected
HashiCorp Nomad
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HashiCorp nomad是美国HashiCorp公司开源的一个集群管理与调度工具。 HashiCorp Nomad存在授权问题漏洞，该漏洞源于动态主机卷功能中存在跨命名空间授权绕过，可能导致持有某个命名空间中主机卷删除权限的操作员删除属于另一个命名空间中作业的粘性卷声明。以下版本受到影响：Nomad 0.4.1至2.0.4之前版本、Nomad Enterprise 1.10.14之前版本、1.10.14至1.11.8之前版本和0.4.1至2.0.4之前版本。

CVSS 4.2 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
HashiCorp Nomad 0.4.1< 2.0.4 affected
HashiCorp Nomad Enterprise 0.4.1< 2.0.4 affected
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I. Basic Information for CVE-2026-14896

Vulnerability Information
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Vulnerability Title
Nomad vulnerable to cross-namespace host volume claim deletion
Source: CVE Program / CVE List V5
Vulnerability Description
HashiCorp Nomad and Nomad Enterprise are vulnerable to a cross-namespace authorization bypass in the dynamic host volumes feature that may allow an operator holding the host volume delete permission in one namespace to delete a sticky volume claim belonging to a job in another namespace. This vulnerability, CVE-2026-14896, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
HashiCorp Nomad 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp nomad是美国HashiCorp公司开源的一个集群管理与调度工具。 HashiCorp Nomad存在授权问题漏洞，该漏洞源于动态主机卷功能中存在跨命名空间授权绕过，可能导致持有某个命名空间中主机卷删除权限的操作员删除属于另一个命名空间中作业的粘性卷声明。以下版本受到影响：Nomad 0.4.1至2.0.4之前版本、Nomad Enterprise 1.10.14之前版本、1.10.14至1.11.8之前版本和0.4.1至2.0.4之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HashiCorp Nomad 0.4.1 ~ 2.0.4 -
HashiCorp Nomad Enterprise 0.4.1 ~ 2.0.4 -

II. Public POCs for CVE-2026-14896

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III. Intelligence Information for CVE-2026-14896

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Vendor Advisories for CVE-2026-14896 (1)

Same Patch Batch · HashiCorp · 2026-07-08 · 5 CVEs total

CVE-2026-14891 8.7 HIGH Nomad vulnerable to sandbox escape in Docker task driver
CVE-2026-14373 7.7 HIGH Nomad Docker driver Linux host namespace bypass
CVE-2026-14362 4.9 MEDIUM Denial of service via crafted push/pull gossip message in memberlist
CVE-2026-14361 4.7 MEDIUM Consul-template is vulnerable to path redirection in writeToFile through symlink attack

IV. Related Vulnerabilities

Same product: Nomad
Same vendor: HashiCorp
Same weakness: CWE-863

V. Comments for CVE-2026-14896

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