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Public proof of conceptFix available

CVE-2025-53355

mcp-server-kubernetes vulnerable to command injection in several tools

A public proof of concept exists; no exploitation attested.

  • Published2025-07-08
  • Fixed in2.5.0
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. A command injection vulnerability exists in the mcp-server-kubernetes MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.execSync, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. This vulnerability is fixed in 2.5.0.

Timeline

dates in UTC
  1. 2025-07-0820:15CVE publishedNVD

Versions per branch

OSV
mcp-server-kubernetes
BranchAffectedFixed in
2.5< 2.5.02.5.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Flux159 mcp-server-kubernetes
    Affected
    • = < 2.5.0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-08

Fix

  1. Update mcp-server-kubernetes to 2.5.0

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2025-07-09
  • CNACVSS 3.17.5known since 2026-10-23
  • CNAweakness (CWE)CWE-77known since 2026-10-23
  • FIRST EPSSEPSS score2.2 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2025-07-08

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2025-07-08
Last Modified
2026-06-17
NVD status
Deferred
GitHub Advisory
GHSA-gjv4-ghm7-q58q

Frequently asked questions

What is CVE-2025-53355?

MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. A command injection vulnerability exists in the mcp-server-kubernetes MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.execSync, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. This vulnerability is fixed in 2.5.0.

Is CVE-2025-53355 actively exploited?

A proof-of-concept exploit exists for CVE-2025-53355, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-53355?

CVE-2025-53355 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

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