argocd-mcp through 0.9.0 Path Traversal via delete_application Tool

{
  "id": "0ab99e68a4bf1c23027d0e7bd4aa4a2e1d3c094cb4b2be8ce6af941002a7ed3a",
  "url": "https://osv.dev/vulnerability/CVE-2026-108585",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "argocd-mcp through 0.9.0 Path Traversal via delete_application Tool",
    "summary": "argocd-mcp (Argo CD MCP Server) through 0.9.0 contains a path traversal vulnerability in the delete_application tool that allows MCP clients to reach unintended API endpoints via unvalidated applicationName values. Attackers or prompt-injected models can supply dot-segment values like ../repositories/ to send authenticated DELETE requests deleting repositories, clusters, or projects within the token's RBAC permissions.",
    "evidence": "osv:CVE-2026-108585",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-108585",
      "aliases": [
        "CVE-2026-108585"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/argoproj-labs/mcp-for-argocd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "28d15ca69b0c31387cc6ec73d201fd13c5d22b6a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.9.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.9.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.0",
            "v0.5.0",
            "v0.4.0",
            "v0.3.0",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.6",
            "v0.0.5",
            "v0.0.4",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108585.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.594365465Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/argocd-mcp",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108585.json",
        "https://hackmd.io/@haind/argocd-mcp-delete-application-route-smuggling",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-108585",
        "https://www.vulncheck.com/advisories/argocd-mcp-through-0.9.0-path-traversal-via-delete-application-tool",
        "https://github.com/argoproj-labs/mcp-for-argocd",
        "https://github.com/argoproj-labs/mcp-for-argocd/blob/28d15ca69b0c31387cc6ec73d201fd13c5d22b6a/src/argocd/client.ts#L115-L139",
        "https://github.com/argoproj-labs/mcp-for-argocd/blob/28d15ca69b0c31387cc6ec73d201fd13c5d22b6a/src/argocd/http.ts#L86-L91"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108585.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-108585",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517927,
  "published_at": "2026-10-10T16:14:09.568+00:00"
}