CVE-2026-12940 Langflow is affected by remote code execution due to multiple unauthenticated and insufficiently authorized API endpoints

IBM Langflow OSS 1.0.0 through 1.10.1 are vulnerable to unauthenticated remote code execution via environment variable injection in the MCP Model Context Protocol stdio launcher. The vulnerability exists in src/lfx/src/lfx/base/mcp/util.py where the DANGEROUSENVVARS blocklist fails to include...

CVE-2026-14499

CVE-2026-14499 affects Langflow OSS 1.0.0–1.10.1. An authenticated user could execute arbitrary commands with elevated privileges due to improper validation of user-supplied input in the Python Interpreter component, resulting in OS command injection (CWE-78). IBM’s bulletin assigns CVSS v3.1 bas...

EUVD-2026-45282

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to read arbitrary files including the JWT signing key and forge authentication tokens for any user...

CVE-2026-7787

IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references...