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PYSEC-2026-3857 langgraph-api: Relative webhook targets in LangGraph Server can reach in-process routes without authentication

🗓️ 10 Sep 2026 09:44:51Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 4 Views

Relative webhooks in langgraph-api bypass auth via in-process loopback reaching cross-user routes.

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