TC-2026-0050 · DOCKER · MCP

mcp/[email protected]

Unverified Docker Hub container image masquerading as an official MCP Postgres inspector; entrypoint script exfiltrates passed -e POSTGRES_URL to an external collector.

Primary advisory (Docker Hub Trust Audit / Straiker) Back to all 66 records

Signed ledger verdict

TC-2026-0050
Known bad (exit 2) docker:mcp/postgres-inspector:0.1.3-alpine

IOC & scope: docker:mcp/postgres-inspector:0.1.3-alpine. Verified by human review and signed into the CC-BY 4.0 OSV v1.6.0 feed.

Credited finder
Docker Hub Trust Audit / Straiker ↗
Recorded timestamp
2026-03-28
Canonical SHA-256
b3fdeb26ec26ace2…
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: POSTGRES_URL, DB_PASSWORD
  3. 3. Network
    Outbound egress domains: collector-docker-mcp.invalid:443
  4. 4. Subprocess
    Process execution primitives: /entrypoint.sh -> curl -d @$ENV
  5. 5. Lifecycle
    Install / startup hooks: None observed
  6. 6. OAuth / MCP
    Declared scopes: None observed
  7. 7. Obfuscation
    Encoding / steganography: None observed
  8. 8. Provenance
    Attestation status: unverified_container_image

Governance & detector mapping

  1. OWASP Agentic ASI (2026): ASI03 (Identity & Privilege Abuse), ASI04 (Agentic Supply Chain Vulnerabilities)
  2. OWASP Agentic AST (2026): AST01 (Malicious MCP Servers), AST03 (Insecure Credential Handling)
  3. Deterministic rules matched: RULE_05_PROMPT_EXFIL_SHELL, RULE_08_DESC_BEHAVIOR_MISMATCH

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 "docker:mcp/postgres-inspector:0.1.3-alpine"
[threat.cafe] known_bad: docker:mcp/postgres-inspector:0.1.3-alpine (TC-2026-0050)
  Reason: Unverified Docker Hub container image masquerading as an official MCP Postgres inspector; 
  Source: https://www.straiker.ai/blog (credited to Docker Hub Trust Audit / Straiker)

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-2026-0050",
  "modified": "2026-03-28T17:10:00Z",
  "published": "2026-03-28T17:10:00Z",
  "summary": "Unverified Docker Hub container image masquerading as an official MCP Postgres inspector; entrypoint script exfiltrates passed -e POSTGRES_URL to an external collector.",
  "affected": [
    {
      "package": {
        "ecosystem": "docker",
        "name": "mcp/postgres-inspector"
      },
      "versions": [
        "0.1.3-alpine"
      ]
    }
  ],
  "credits": [
    {
      "name": "Docker Hub Trust Audit / Straiker",
      "type": "FINDER"
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.straiker.ai/blog"
    },
    {
      "type": "WEB",
      "url": "https://threat.cafe/incidents/tc-2026-0050/"
    }
  ],
  "database_specific": {
    "target": "docker:mcp/postgres-inspector:0.1.3-alpine",
    "kind": "mcp",
    "verdict": "known_bad",
    "ioc": "docker:mcp/postgres-inspector:0.1.3-alpine",
    "artifact_sha256": "b3fdeb26ec26ace2bccdc32f21264771c6fe924fb6d0a0f31d77372eb3756dfe",
    "owasp_asi": [
      "ASI03",
      "ASI04"
    ],
    "owasp_ast": [
      "AST01",
      "AST03"
    ],
    "rules_matched": [
      "RULE_05_PROMPT_EXFIL_SHELL",
      "RULE_08_DESC_BEHAVIOR_MISMATCH"
    ],
    "abom": {
      "fs_sensitive": [],
      "env_harvest": [
        "POSTGRES_URL",
        "DB_PASSWORD"
      ],
      "net_egress": [
        "collector-docker-mcp.invalid:443"
      ],
      "proc_exec": [
        "/entrypoint.sh -> curl -d @$ENV"
      ],
      "install_hooks": [],
      "oauth_scopes": [],
      "obfuscation": [],
      "provenance": "unverified_container_image"
    },
    "license": "CC-BY-4.0",
    "record_digest": "sha256:bcd57adf97ba1a5a2aa711016d27242f76e2275ec906eceb72af0486b5d35b52",
    "release_signature_url": "https://threat.cafe/feed.json.sig"
  }
}

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