Vulnerability · Published Oct 29, 2026 · Assigned by HashiCorp
CVE-2026-107347Nomad dispatch payload writes can escape the allocation directory through symlinks
High 8.4
In plain English
A high-severity security flaw in Nomad from HashiCorp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HashiCorp | Nomad | 0.3.0 – before 2.1.1 |
| HashiCorp | Nomad Enterprise | 0.3.0 – before 2.1.0 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H