Vulnerability DatabaseCVE-2026-107347
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CVE-2026-107347
Published:October 29, 2026
Updated:October 30, 2026
HashiCorp Nomad and Nomad Enterprise are vulnerable to symlink following during dispatch payload and executor log writes that may allow a malicious workload to modify files outside its allocation directory. When the client agent runs as root, this could lead to code execution as root on the client host. This vulnerability (CVE-2026-107347) is fixed in Nomad 2.1.1 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18.
Affected Packages
https://github.com/hashicorp/nomad.git (GITHUB):
Affected version(s) >=v0.5.3-rc1 <v2.1.1
Fix Suggestion:
Update to version v2.1.1
github.com/hashicorp/nomad (GO):
Affected version(s) >=v0.5.3-rc1 <v2.1.1
Fix Suggestion:
Update to version v2.1.1
Related Resources (1)
https://discuss.hashicorp.com/t/hcsec-2026-52-nomad-dispatch-payload-writes-can-escape-the-allocation-directory-through-symlinks/77930
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CVSS v4
Base Score:
8.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Link Resolution Before File Access
CWE-59