Key Findings: A critical security flaw (CVE-2025-68664) has been disclosed in LangChain Core that could enable attackers to steal sensitive secrets and influence large language model (LLM) responses through prompt injection. The vulnerability, tracked as CVE-2025-68664, carries a CVSS score of 9.3 out of 10.0. The vulnerability is caused by a serialization injection issue in the `dumps()` and `dumpd()` functions of LangChain, which fail to properly escape dictionaries with "l
