CVE-2026-9205: IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

IBM Langflow OSS (an open-source software tool) has a weak cryptographic key derivation vulnerability in its ensure_fernet_key() function (a function that creates encryption keys using Fernet, a symmetric encryption method). The issue involves using a cryptographically weak pseudo-random number generator (PRNG, a tool for creating unpredictable numbers needed for secure encryption), which could compromise the strength of generated encryption keys.