TC-2026-0045 · MCP · MCP

[email protected]

Operational & Security Sunset (Oct 31, 2026): Smithery (acquired by Arcade.dev) is shutting down its hosted MCP Proxy, managed auth, *.run.tools, and server.smithery.ai endpoints, leaving legacy .mcp.json configs failing open or vulnerable to dangling subdomain takeover.

Primary advisory (threat.cafe Live Registry CT-Log) Back to all 66 records

Signed ledger verdict

TC-2026-0045
Known bad (exit 2) mcp:[email protected]

IOC & scope: mcp:[email protected] (*.run.tools / server.smithery.ai sunset). Verified by human review and signed into the CC-BY 4.0 OSV v1.6.0 feed.

Credited finder
threat.cafe Live Registry CT-Log ↗
Recorded timestamp
2026-10-25
Canonical SHA-256
96aefb59de723d17…
Local hook action
Block (exit 2)
Run live in Counter Workbench

Signed in /feed.json (.sig).

01 8-Vector Capability X-Ray (ABOM) & OWASP Agentic Crosswalk

Deterministic capability profile and taxonomy mapping.

Every artifact in the threat.cafe ledger is profiled across eight execution vectors and mapped to the OWASP Top 10 for Agentic Applications (ASI01-ASI10) and Agentic Skills & Tools (AST01-AST10).

8-Vector Capability X-Ray (ABOM)

  1. 1. Filesystem
    Sensitive paths touched: None observed
  2. 2. Environment
    Variables harvested: None observed
  3. 3. Network
    Outbound egress domains: server.smithery.ai, *.run.tools
  4. 4. Subprocess
    Process execution primitives: None observed
  5. 5. Lifecycle
    Install / startup hooks: None observed
  6. 6. OAuth / MCP
    Declared scopes: smithery:managed_auth_deprecated
  7. 7. Obfuscation
    Encoding / steganography: None observed
  8. 8. Provenance
    Attestation status: deprecated_proxy_infrastructure_2026_10_31

Governance & detector mapping

  1. OWASP Agentic ASI (2026): ASI04 (Agentic Supply Chain Vulnerabilities), ASI08 (Cascading Failures)
  2. OWASP Agentic AST (2026): AST03 (Insecure Credential Handling), AST06 (Unverified Third-Party Skills)
  3. Deterministic rules matched: CONFIG_07_POST_SMITHERY_DEPRECATION, DRIFT_03_DNS_CNAME_TAKEOVER

Version scoping & related records

  • No other versions of this package are currently listed on the board. Unlisted versions evaluate to unknown under local policy.yml.

Local CLI verification

$ threat-cafe-hook check "mcp:[email protected]"
[threat.cafe] known_bad: mcp:[email protected] (TC-2026-0045)
  Reason: Operational & Security Sunset (Oct 31, 2026): Smithery (acquired by Arcade.dev) is shuttin
  Source: https://smithery.ai/future (credited to threat.cafe Live Registry CT-Log)

OSV v1.6.0 machine-readable record

Included in /feed.json under CC-BY 4.0 license and verified by /feed.json.sig.

{
  "schema_version": "1.6.0",
  "id": "TC-2026-0045",
  "modified": "2026-10-25T06:30:00Z",
  "published": "2026-10-25T06:30:00Z",
  "summary": "Operational & Security Sunset (Oct 31, 2026): Smithery (acquired by Arcade.dev) is shutting down its hosted MCP Proxy, managed auth, *.run.tools, and server.smithery.ai endpoints, leaving legacy .mcp.json configs failing open or vulnerable to dangling subdomain takeover.",
  "affected": [
    {
      "package": {
        "ecosystem": "mcp",
        "name": "smithery-proxy-deprecated"
      },
      "versions": [
        "2026.10.31"
      ]
    }
  ],
  "credits": [
    {
      "name": "threat.cafe Live Registry CT-Log",
      "type": "FINDER"
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://smithery.ai/future"
    },
    {
      "type": "WEB",
      "url": "https://threat.cafe/incidents/tc-2026-0045/"
    }
  ],
  "database_specific": {
    "target": "mcp:[email protected]",
    "kind": "mcp",
    "verdict": "known_bad",
    "ioc": "mcp:[email protected] (*.run.tools / server.smithery.ai sunset)",
    "artifact_sha256": "96aefb59de723d17ecfc66601f4fac2540dbb2a119e27db1f2d73dea8429b26d",
    "owasp_asi": [
      "ASI04",
      "ASI08"
    ],
    "owasp_ast": [
      "AST03",
      "AST06"
    ],
    "rules_matched": [
      "CONFIG_07_POST_SMITHERY_DEPRECATION",
      "DRIFT_03_DNS_CNAME_TAKEOVER"
    ],
    "abom": {
      "fs_sensitive": [],
      "env_harvest": [],
      "net_egress": [
        "server.smithery.ai",
        "*.run.tools"
      ],
      "proc_exec": [],
      "install_hooks": [],
      "oauth_scopes": [
        "smithery:managed_auth_deprecated"
      ],
      "obfuscation": [],
      "provenance": "deprecated_proxy_infrastructure_2026_10_31"
    },
    "license": "CC-BY-4.0",
    "record_digest": "sha256:0b2668865e756b36ed4efe9a0048af625e54219a59e7b1bebcb7e0a271f52eb2",
    "release_signature_url": "https://threat.cafe/feed.json.sig"
  }
}

Have additional IOCs or a maintainer remediation update for TC-2026-0045?

Maintainer disputes and version-scoping updates are reviewed by a human within our 48-hour dispute SLA.

Submit update or dispute Read 48h dispute policy