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

Severity: Critical

CVSS Score: 10

Note Mark is an open-source note-taking application. Prior to 0.19.4, 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. This vulnerability is fixed in 0.19.4.