Critical LangChain Vulnerability Enables Secret Exfiltration

Critical LangChain Vulnerability Enables Secret Exfiltration

First seen 26 Dec 2025, 07:10 UTC •News.YcombinatorCybersecuritynewsGbhackersCyberpressThehackernews+1 •77% similarity •45.3

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A critical vulnerability in LangChain’s core library (CVE-2025-68664) was discovered, allowing attackers to exfiltrate sensitive environment variables and potentially execute code through deserialization flaws. The issue, affecting a widely used AI framework with hundreds of millions of downloads, was patched just before Christmas 2025.

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