{
 "id": "AIR-2026-0360",
 "slug": "claude-code-github-action-secret-exposure-via-prompt-injecti",
 "title": "Claude Code GitHub Action Secret Exposure via Prompt Injection",
 "summary": "Researchers demonstrated that Anthropic's Claude Code GitHub Action could expose workflow secrets when processing GitHub content containing prompt injections. The vulnerability allowed agent tools to leak sensitive CI/CD data.",
 "type": "attack_on_ai",
 "categories": [
  "prompt_injection",
  "agent_hijack",
  "data_leak"
 ],
 "severity": 1,
 "targets": [
  "Anthropic",
  "framework_or_tooling"
 ],
 "products": [
  "Claude Code GitHub Action"
 ],
 "incident_date": "2026-06-05",
 "incident_date_precision": "day",
 "first_reported": "2026-07-31",
 "sources": [
  {
   "url": "https://atlas.mitre.org/studies/AML.CS0067",
   "publisher": "MITRE ATLAS",
   "title": "Claude Code GitHub Action Secret Exposure",
   "published_at": "2026-07-31"
  },
  {
   "url": "https://microsoft.com/en-us/security/blog/2026/06/05/securing-ci-cd-in-agentic-world-claude-code-github-action-case",
   "publisher": "Microsoft Security",
   "title": "Securing CI/CD in an agentic world: Claude Code Github action case",
   "published_at": "2026-07-31"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_atlas",
 "tags": [
  "claude-code",
  "prompt-injection",
  "secret-exposure"
 ],
 "created_at": "2026-10-18T06:55:08.239Z",
 "updated_at": "2026-10-18T06:55:08.239Z"
}