Analysis · curated 19 Aug 2026
LangChain Hardening Guide
First reported howtoharden.com
Coverage timeline
Single-source analysis — first reported, latest, and curated coincide.
Why it matters
The LangChain Hardening Guide gives defenders operating production LLM agents and RAG pipelines a consolidated set of controls against prompt injection, over-privileged tools, and known LangChain/LangSmith CVEs.
The LangChain Hardening Guide on howtoharden.com is a defensive reference covering security hardening for LangChain, LangSmith, and LangGraph, including SSO/RBAC, SDK CVE patching (CVE-2026-25528 SSRF, CVE-2026-25750 token leak), prompt-injection defense mapped to OWASP LLM Top 10, tracing redaction, sandboxing untrusted code, and agent tool least-privilege. The guide is tiered (L1-L3) and links companion code packs of hardening scripts on GitHub.