Arbitrary File Read and Write Vulnerability in HashiCorp Nomad and Nomad Enterprise
CVE-2026-6959

6MEDIUM

Key Information:

Vendor

Hashicorp
Status
Nomad
Nomad Enterprise
Vendor
CVE Published:
12 May 2026

What is CVE-2026-6959?

HashiCorp Nomad and Nomad Enterprise prior to version 2.0.1 are impacted by a significant security vulnerability that allows attackers to exploit symlink attacks. This vulnerability enables arbitrary file read and write operations on the client host, posing serious risks to system integrity and confidentiality. The issue has been addressed in versions 2.0.1, 1.11.5, and 1.10.11, suggesting immediate upgrades for users to mitigate potential security threats.

Affected Version(s)

Nomad 64 bit 0.9.0 < 2.0.1

Nomad Enterprise 64 bit 0.9.0 < 2.0.1

References

https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbit...

CVSS V3.1

Score:
6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was identified by Alex Manson (Aiven / NeuroWinter).
.