LangChain Core 1.3.2 / 0.3.84 Tracer Deserialization / Credential Disclosure

LangChain Core has a tracer deserialization vulnerability that could allow unauthenticated remote credential exfiltration in affected deployments. Versions 1.3.2 and 0.3.84 are affected...

CVE-2026-40087 LangChain has incomplete f-string validation in prompt templates

LangChain is a framework for building agents and LLM-powered applications. Prior to 0.3.84 and 1.2.28, LangChain's f-string prompt-template validation was incomplete in two respects. First, some prompt template classes accepted f-string templates and formatted them without enforcing the same...

LangChain 安全漏洞

LangChain is an open-source framework developed by LangChain for creating applications powered by large language models LLMs. Versions of LangChain prior to 0.3.84 and 1.2.28 contained security vulnerabilities. These vulnerabilities stemmed from incomplete validation of f-string template fields,...

Improper Neutralization of Special Elements Used in a Template Engine

Overview langchain-core is a Building applications with LLMs through composability Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine via the template formatting. An attacker can access internal object fields or nested data by...