https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 01:01:43 +0000 https://vulnerability.circl.lu/vuln/cve-2025-68665 <p><strong>Affected:</strong> langchain-ai langchainjs</p> <p>LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS&#39;s toJSON() method (and subsequently when string-ifying objects using JSON.stringify(). The method did not escape objects with &#39;lc&#39; keys when serializing free-form data in kwargs. The &#39;lc&#39; 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 @langchain/core versions 0.3.80 and 1.1.8, and langchain versions 0.3.37 and 1.2.3</p> <p><strong>Affected:</strong> langchain-ai langchainjs</p> <p>LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS&#39;s toJSON() method (and subsequently when string-ifying objects using JSON.stringify(). The method did not escape objects with &#39;lc&#39; keys when serializing free-form data in kwargs. The &#39;lc&#39; 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 @langchain/core versions 0.3.80 and 1.1.8, and langchain versions 0.3.37 and 1.2.3</p> https://vulnerability.circl.lu/vuln/cve-2025-68665