CVE-2026-44523: Note Mark has a JWT Secret Weakness that allows Full Account Takeover via Token Forgery

No minimum length or entropy is enforced on the JWT_SECRET configuration value. The application accepts any base64-decodable secret regardless of size, including secrets as short as 1 byte.

HS256 secrets below 32 bytes are brute-forceable offline, allowing attackers to recover the signing key and forge valid JWTs for arbitrary users.