CVE-2026-82456
argocd-mcp 0.8.0 Authentication Bypass via Unauthenticated HTTP
CVSS 4.0 10.0 CRITICALCVSS 3.1 10.0 CRITICALCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-82456
Publishedargocd-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.
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CVE-2026-82456 · CVE overview and exploitation status
cve-program · CVE-2026-82456
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