CVE-2026-10561

Affected product: Langflow OSS (1.0.0–1.9.3). Vulnerability: Unauthenticated remote code execution via improper isolation of Python execution in the PythonREPLComponent, combined with an authentication bypass. CPython’s exec() uses a globals dict without correctly restricting builtins, allowing a...

Security Bulletin: Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection

Summary Langflow OSS contains unauthenticated RCE vulnerability in PythonREPLComponent "Python Interpreter". Component's getglobals builds restricted globals dict from globalimports whitelist default: "math" but never sets globals"builtins" = . CPython's exec automatically inserts full builtins...