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GHSA-wmg3-h8mf-wgvrPublished

mcp-server-kubernetes argument injection can expose Kubernetes cluster credentials

Exact source revision recorded 28 Oct 2026 15:47:00 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

osv · GHSA-wmg3-h8mf-wgvr

Published

MCP Server Kubernetes before 3.9.0 contains an argument injection vulnerability in structured tools (kubectl_get, kubectl_describe, kubectl_delete) that allows attackers to bypass the assertNoDangerousFlags security check by supplying resourceType and name parameters with leading dashes. Attackers can inject the --server flag to redirect kubectl commands to an attacker-controlled API server, causing the operator's bearer token to be transmitted externally and enabling full cluster compromise.

Source published
10 Jul 2026 21:32:32 UTC
Source modified
28 Oct 2026 15:15:05 UTC
Observed here
28 Oct 2026 15:47:00 UTC
Source terms
GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Publisher rating · CRITICAL

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