Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-68664

LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in versions 0.3.81 and 1.2.5.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.0%
CVSS Severity
CVSS v3 Score 9.3
Products affected by CVE-2025-68664


Contact Us

Shodan ® - All rights reserved