Arbitrary Command Injection Affecting mcp-server-kubernetes package, versions <2.9.8
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Dec 2025
- disclosed3 Dec 2025
- creditlavenderlilly
Introduced: 3 Dec 2025
CVE-2025-66404 (opens in a new tab)How to fix?
Upgrade mcp-server-kubernetes to version 2.9.8 or higher.
Overview
mcp-server-kubernetes is a MCP server for interacting with Kubernetes clusters via kubectl
Affected versions of this package are vulnerable to Arbitrary Command Injection via the exec_in_pod tool. An attacker can execute arbitrary commands within Kubernetes pods by supplying crafted input containing shell meta-characters, which are interpreted by the shell due to lack of input validation.
Note:
This can be exploited either directly by users with access to the tool interface or indirectly by embedding malicious instructions in pod logs that may be executed by AI agents.