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PyPI/langchain CVE-2026-55443: medium 5.5, EPSS 0.21%

LangChain is a framework for building agents and LLM-powered applications. Prior to 1.3.9, several LangChain components that resolve filesystem paths or expand search patterns do not consistently conf

Action: Upgrade langchain to 1.3.9 or later.

pip install langchain==1.3.9

Affected

introducedfixedlast affected
01.3.9-

Fixed versions

1.3.9

Sources

CVE-2026-55443 · published · modified · JSON