AI Sec Watch: A Security Intelligence Platform for AI Systems

Luu, T.J.

langchain-core==1.2.12

infonewsLLM-Specific

security

Source: LangChain Security ReleasesFebruary 12, 2026

Summary

Langchain-core version 1.2.12 was released with a bug fix for setting ChatGeneration.text (a property that stores generated text output from a chat model). The update addresses issues found in the previous version 1.2.11.

Solution / Mitigation

Update to langchain-core version 1.2.12, which contains the fix for the ChatGeneration.text setting issue.

Classification

Attack SophisticationTrivial

AI Component TargetedFramework

Affected Vendors

LangChain

Related Issues

critical

CVE-2024-27444: langchain_experimental (aka LangChain Experimental) in LangChain before 0.1.8 allows an attacker to bypass the CVE-2023-

Same vendorNVD/CVE Database

critical

CVE-2025-45150: Insecure permissions in LangChain-ChatGLM-Webui commit ef829 allows attackers to arbitrarily view and download sensitive

Same vendor

Original source: https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.12

First tracked: February 14, 2026 at 03:00 PM

Classified by LLM (prompt v3) · confidence: 75%