ROOT-APP-PYPI-CVE-2026-40087 CVE-2026-40087 in rootio-langchain-core - Patched by Root

Root has patched CVE-2026-40087 in the rootio-langchain-core package for Root:PyPI. Multiple fixed versions available...

CVE-2026-40087 vulnerabilities

Vulnerabilities for packages: open-webui, py3-langchain...

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...