VULNERABILITY INTELLIGENCE
CVE-2026-82456
CVSS score10 CRITICAL
EPSS probability2.37%
CISA KEVNot currently listed
Published2026-08-29
Last modified2026-09-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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.
Weakness classification
- disclosure@vulncheck.com: CWE-1327