{"id":"CVE-2026-46519","sourceIdentifier":"security-advisories@github.com","published":"2026-06-11T19:16:42.213","lastModified":"2026-10-26T11:10:00.157","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"mcp-server-kubernetes is a Model Context Protocol server for Kubernetes cluster management. Prior to version 3.6.0, mcp-server-kubernetes exposes three environment variables (ALLOW_ONLY_READONLY_TOOLS, ALLOW_ONLY_NON_DESTRUCTIVE_TOOLS, ALLOWED_TOOLS) documented as access controls for restricting which Kubernetes operations are available. These controls are enforced at the tool discovery layer (tools/list) but not at the execution layer (tools/call). Any client that knows a tool name can invoke it directly regardless of the configured restriction mode. The access control was effectively cosmetic. This issue has been patched in version 3.6.0."},{"lang":"es","value":"mcp-server-kubernetes es un servidor de Protocolo de Contexto de Modelo para la gestión de clústeres de Kubernetes. Antes de la versión 3.6.0, mcp-server-kubernetes expone tres variables de entorno (ALLOW_ONLY_READONLY_TOOLS, ALLOW_ONLY_NON_DESTRUCTIVE_TOOLS, ALLOWED_TOOLS) documentadas como controles de acceso para restringir qué operaciones de Kubernetes están disponibles. Estos controles se aplican en la capa de descubrimiento de herramientas (tools/list) pero no en la capa de ejecución (tools/call). Cualquier cliente que conozca el nombre de una herramienta puede invocarla directamente independientemente del modo de restricción configurado. El control de acceso era efectivamente cosmético. Este problema ha sido parcheado en la versión 3.6.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"Flux159","product":"mcp-server-kubernetes","versions":[{"version":"< 3.6.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-11T19:39:57.663035Z","id":"CVE-2026-46519","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"}]}],"references":[{"url":"https://github.com/Flux159/mcp-server-kubernetes/releases/tag/v3.6.0","source":"security-advisories@github.com"},{"url":"https://github.com/Flux159/mcp-server-kubernetes/security/advisories/GHSA-cr22-wjx7-2w6m","source":"security-advisories@github.com"},{"url":"https://github.com/Flux159/mcp-server-kubernetes/security/advisories/GHSA-cr22-wjx7-2w6m","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}