CVE-2026-107347 — HIGH (8.4)

Vulnerability Description

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.

CVSS Score

8.4

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-59

References

https://discuss.hashicorp.com/t/hcsec-2026-52-nomad-dispatch-payload-writes-can-

FAQ

What is CVE-2026-107347?

CVE-2026-107347 is a vulnerability with a CVSS score of 8.4 (HIGH). 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 dire...

How severe is CVE-2026-107347?

CVE-2026-107347 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-107347?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.