{
 "public_id": "AIR-2025-0171",
 "incident_id": "2025-11-koi-promptjacking-claude-desktop",
 "date_disclosed": "2025-11-05",
 "date_occurred": null,
 "title": "PromptJacking: command injection in three official Claude Desktop connectors turns prompts into RCE",
 "class": "responsible_disclosure",
 "attack_surface": "skill_plugin",
 "initial_vector": "indirect_prompt_injection_to_command_injection",
 "agent_capability_abused": [
  "applescript_execution",
  "connector_tool_use"
 ],
 "target_product": "Claude Desktop Chrome, iMessage and Apple Notes connectors",
 "target_vendor": "Anthropic",
 "autonomy_level": "assistant",
 "impact_realized": false,
 "impact_type": [
  "remote_code_execution"
 ],
 "blast_radius": "Claude Desktop users with the official extensions installed",
 "cve": [],
 "taxonomy": {
  "owasp_asi": [
   "ASI01",
   "ASI05"
  ],
  "mitre_atlas": [],
  "labels": [
   "command_injection",
   "rce",
   "unsandboxed_extension"
  ]
 },
 "defense_present": null,
 "defense_bypassed": true,
 "fix_shipped": "Claude Desktop extensions v0.1.9, 2025-08-28 (verified 2025-09-19)",
 "primary_sources": [
  "https://www.koi.ai/blog/promptjacking-the-critical-rce-in-claude-desktop-that-turn-questions-into-exploits"
 ],
 "verified_quote": "Claude Desktop Extensions? They run fully unsandboxed on your machine, with full system permissions.",
 "confidence": "high",
 "notes": "Author Oren Yomtov. Unescaped interpolation of model-controlled input into AppleScript. Three high-severity issues, CVSS 8.9 each; reported 2025-07-03. Koi does not list CVE ids in the post.",
 "risk_category": "security_fraud",
 "risk_secondary": [],
 "risk_subcategory": "Prompt Injection",
 "risk_sub_secondary": [
  "Remote Code Execution & Sandbox Escape"
 ],
 "ai_entity": "generative",
 "agency": "agent_acted",
 "agency_debatable": false,
 "agency_reason": "the connectors executed AppleScript built from model-controlled input",
 "vector_family": "indirect_prompt_injection",
 "vector_detail": "indirect_prompt_injection_to_command_injection",
 "guardrail_kind": [
  "unknown"
 ],
 "guardrail_outcome": "silent",
 "xrefs": {
  "aiid": [],
  "atlas": [],
  "cve": [],
  "ghsa": []
 },
 "primary_asi": "ASI01",
 "agent_framework": "unknown",
 "model_provider": "anthropic",
 "model_name": "",
 "detection_mechanism": "external_researcher",
 "tool_access": "unknown",
 "financial_loss_band": "unknown",
 "eai_category": "privilege_escalation",
 "eai_domain": "access_control_and_permissions",
 "eai_secondary": [
  "confused_deputy"
 ],
 "eai_reason": "impact rule: privilege_escalation",
 "asi_curated": [
  "ASI01"
 ],
 "asi_scope": "in_scope",
 "asi_provenance": "curated_plus_rule",
 "asi_reason": "curated: ASI01 | added ASI05 (impact=code_exec)",
 "submitted_by": "EAI Internal"
}