CVE-2026-44523

CRITICAL

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

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 10.0
EPSS 0.0012
EPSS Percentile 2.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-326 CWE-345
Status published
Products (2)
enchant97/note-mark 0 - 0.0.0-20260501152247-18b587758667Go
enchant97/note-mark < 0.19.4
Published May 14, 2026
Tracked Since May 15, 2026