TC-2025-0016 · GH · PACKAGE

anthropics/[email protected]

CVE-2025-59536 (CVSS 8.7): repository-level .claude/settings.json hooks and .mcp.json servers executed automatically on workspace open prior to trust prompt enforcement.

Primary advisory (Check Point Research) Back to all 66 records

Signed ledger verdict

TC-2025-0016
Known bad (exit 2) gh:anthropics/[email protected]

IOC & scope: gh:anthropics/[email protected] (CVE-2025-59536). Verified by human review and signed into the CC-BY 4.0 OSV v1.6.0 feed.

Credited finder
Check Point Research ↗
Recorded timestamp
2025-10-15
Canonical SHA-256
0b2680932ce1fd9d…
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: .claude/settings.json, .mcp.json
  2. 2. Environment
    Variables harvested: None observed
  3. 3. Network
    Outbound egress domains: None observed
  4. 4. Subprocess
    Process execution primitives: PreToolUse/PostToolUse shell command on clone
  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: vulnerable_release_cve_2025_59536

Governance & detector mapping

  1. OWASP Agentic ASI (2026): ASI01 (Agent Goal Hijack), ASI02 (Tool Misuse & Exploitation), ASI05 (Unexpected Code Execution (RCE))
  2. OWASP Agentic AST (2026): AST02 (Tool & Skill Injection), AST05 (Sandbox Escape & Local Execution)
  3. Deterministic rules matched: CONFIG_05_REPO_HOOK_RCE

Version scoping & related records

Local CLI verification

$ threat-cafe-hook check "gh:anthropics/[email protected]"
[threat.cafe] known_bad: gh:anthropics/[email protected] (TC-2025-0016)
  Reason: CVE-2025-59536 (CVSS 8.7): repository-level .claude/settings.json hooks and .mcp.json serv
  Source: https://nvd.nist.gov/vuln/detail/CVE-2025-59536 (credited to Check Point Research)

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-2025-0016",
  "modified": "2025-10-15T13:00:00Z",
  "published": "2025-10-15T13:00:00Z",
  "summary": "CVE-2025-59536 (CVSS 8.7): repository-level .claude/settings.json hooks and .mcp.json servers executed automatically on workspace open prior to trust prompt enforcement.",
  "affected": [
    {
      "package": {
        "ecosystem": "gh",
        "name": "anthropics/claude-code"
      },
      "versions": [
        "1.0.38"
      ]
    }
  ],
  "credits": [
    {
      "name": "Check Point Research",
      "type": "FINDER"
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59536"
    },
    {
      "type": "WEB",
      "url": "https://threat.cafe/incidents/tc-2025-0016/"
    }
  ],
  "database_specific": {
    "target": "gh:anthropics/[email protected]",
    "kind": "package",
    "verdict": "known_bad",
    "ioc": "gh:anthropics/[email protected] (CVE-2025-59536)",
    "artifact_sha256": "0b2680932ce1fd9de3cd57400c35d377780953d97c4f723661e757d61557c8aa",
    "owasp_asi": [
      "ASI01",
      "ASI02",
      "ASI05"
    ],
    "owasp_ast": [
      "AST02",
      "AST05"
    ],
    "rules_matched": [
      "CONFIG_05_REPO_HOOK_RCE"
    ],
    "abom": {
      "fs_sensitive": [
        ".claude/settings.json",
        ".mcp.json"
      ],
      "env_harvest": [],
      "net_egress": [],
      "proc_exec": [
        "PreToolUse/PostToolUse shell command on clone"
      ],
      "install_hooks": [],
      "oauth_scopes": [],
      "obfuscation": [],
      "provenance": "vulnerable_release_cve_2025_59536"
    },
    "license": "CC-BY-4.0",
    "record_digest": "sha256:bdbf71c56cf33edd60bcc3f78f146add53abd57b91dc0b86abff4316cbb13e0a",
    "release_signature_url": "https://threat.cafe/feed.json.sig"
  }
}

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