Nuclio up to 1.17.3 Dashboard resourceNamespace os command injection

Summaryinfo

A vulnerability identified as critical has been detected in Nuclio up to 1.17.3. This impacts an unknown function of the component Dashboard. Performing a manipulation of the argument resourceNamespace results in os command injection. This vulnerability was named CVE-2026-79756. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Nuclio up to 1.17.3. This affects some unknown functionality of the component Dashboard. The manipulation of the argument resourceNamespace with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-79756 since 08/25/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 1.17.4 eliminates this vulnerability.

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Productinfo

Name

• Nuclio

Version

• 1.17.0
• 1.17.1
• 1.17.2
• 1.17.3

Website

• Product: https://github.com/nuclio/nuclio/

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