Vulnerability · Published May 14, 2026 · Assigned by GitHub_M
CVE-2026-44523Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery
Critical 10.0
In plain English
A critical-severity insufficient verification of data authenticity in note-mark from enchant97. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/enchant97/note-mark/backend | 0.0.0-20260501152247-18b587758667 | GHSA-q6mh-rqwh-g786 |
| Go | github.com/enchant97/note-mark/backend | 0.0.0-20260501152247-18b587758667 | GO-2026-5567 |
Affected products (as reported)
Weakness: CWE-326, CWE-345 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
References
- https://github.com/enchant97/note-mark/security/advisories/GHSA-q6mh-rqwh-g786 x_refsource_CONFIRM