CVE-2026-22869: Eigent Allows Arbitrary Code Execution via pull_request_target CI Workflow

Eigent is a multi-agent Workforce. A critical security vulnerability in the CI workflow (.github/workflows/ci.yml) allows arbitrary code execution from fork pull requests with repository write permissions. The vulnerable workflow uses pull_request_target trigger combined with checkout of untrusted PR code. An attacker can exploit this to steal credentials, post comments, push code, or create releases.