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CVE PROGRAM SOURCE RECORD10.0 Critical

CVE-2026-82456

argocd-mcp 0.8.0 Authentication Bypass via Unauthenticated HTTP

Description

argocd-mcp 0.8.0 binds its HTTP transport to every network interface and accepts MCP sessions without requiring caller credentials when ARGOCD_API_TOKEN is configured. Attackers who can reach the listener can invoke the full tool surface using the operator's stored token to create applications, request syncs, and modify Argo CD resources.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

argoproj-labs argocd-mcp

Default version status: unaffected

  • 0.8.0 to < 0.9.0affected

References