CVE-2026-44523CWE-326CWE-345

Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery

Critical · published May 14, 2026

CVSS v3.1
10.0
EPSS
0%
Percentile
5.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00163 · 5.2th percentile
Weaknesses
CWE-326 · Inadequate Encryption Strength; CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-05-14T18:42Z
EPSS history
Timeline
  • 14 MAY 18:42Z
    Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery
    cvelistv5