CVE-2026-79756: Nuclio: Unauthenticated OS command injection via namespace header in list-all resource path on local platform
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.17.4, the fix for unauthenticated OS command injection in the nuclio dashboard on the local/Docker platform is incomplete. The fix added validateFunctionName for function names and common.Quote() for the named-resource shell command path, but the list-all resource path (triggered when no specific resource name is provided) still interpolates the resourceNamespace parameter unquoted into a /bin/sh -c command string. An unauthenticated attacker can inject shell metacharacters via the X-Nuclio-Function-Namespace, X-Nuclio-Project-Namespace, or X-Nuclio-Function-Event-Namespace HTTP headers to achieve arbitrary command execution inside the dashboard container. This issue has been patched in version 1.17.4.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Nuclio dashboard (local/Docker platform)to a version that resolves this vulnerability.Fixed in 1.17.4
Event History
Frequently Asked Questions
Which deployments are exposed?
The issue affects the Nuclio dashboard on the local/Docker platform before version 1.17.4. The described vulnerable path is in the dashboard container.
What does an attacker need to exploit this?
An attacker does not need authentication. Exploitation requires sending a request that uses the list-all resource path and placing shell metacharacters in the X-Nuclio-Function-Namespace, X-Nuclio-Project-Namespace, or X-Nuclio-Function-Event-Namespace HTTP header.
What is the impact of successful exploitation?
A successful attacker can achieve arbitrary command execution inside the Nuclio dashboard container.
How can this be remediated?
Upgrade Nuclio to version 1.17.4, which patches the issue.