CRITICAL 10.0 NVD
CVE-2026-82456
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 conf
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.
References
- https://github.com/argoproj-labs/mcp-for-argocd
- https://github.com/argoproj-labs/mcp-for-argocd/security/advisories/GHSA-rp45-5x3v-48mr
- https://www.vulncheck.com/advisories/argocd-mcp-0.8.0-authentication-bypass-via-unauthenti
This critical severity vulnerability with a CVSS score of 10.0 was published on 2026-08-29 via NVD.
Risk Timeline
CVE Disclosed2026-08-29 · -1 days ago
Remediation Resources
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