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.
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 31 Aug 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Argoproj-labs
Argoproj-labs argocd-mcp |
|
| Vendors & Products |
Argoproj-labs
Argoproj-labs argocd-mcp |
Sat, 29 Aug 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | argocd-mcp 0.8.0 Authentication Bypass via Unauthenticated HTTP | |
| Weaknesses | CWE-1327 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-02T18:00:04.584Z
Reserved: 2026-08-29T13:22:59.955Z
Link: CVE-2026-82456
No data.
Status : Received
Published: 2026-08-29T14:16:38.767
Modified: 2026-09-02T19:18:06.690
Link: CVE-2026-82456
No data.
OpenCVE Enrichment
Updated: 2026-08-31T11:19:44Z
Weaknesses