CVE-2026-5061 Consul-template vulnerable to sandbox path bypass in file helper via a symlink attack
An attacker can bypass sandbox restrictions to read arbitrary files outside the intended directory using a symlink attack in the file helper.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-5061?
CVE-2026-5061 is a medium-severity path traversal vulnerability in HashiCorp Tooling, published on 12 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The consul-template library before version 0.42.0 is vulnerable to a sandbox path bypass in the file template helper that may allow reading an out-of-sandbox file. This vulnerability (CVE-2026-5061) is fixed in consul-template 0.42.0.
Weakness: CWE-59
Which versions are affected by CVE-2026-5061?
1 open source package ship an affected version, including consul.
| Package | Affected | Fixed in |
|---|---|---|
consul Bitnami | From 0.1.0 | 0.42.0 |
How do I fix CVE-2026-5061?
Upgrade consul to 0.42.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-5061 being exploited?
There is no known exploitation of CVE-2026-5061 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as BIT-consul-2026-5061, GHSA-m633-g3vp-7qw3.