CVE-2026-44523
Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery
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.
INFO
Published Date :
May 14, 2026, 7:16 p.m.
Last Modified :
Oct. 26, 2026, 2:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-44523
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Note Mark to version 0.19.4.
- Configure a strong, sufficiently long JWT secret.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-44523.
| URL | Resource |
|---|---|
| https://github.com/enchant97/note-mark/security/advisories/GHSA-q6mh-rqwh-g786 | |
| https://github.com/enchant97/note-mark/security/advisories/GHSA-q6mh-rqwh-g786 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-44523 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-44523
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44523 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44523 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: note-mark de enchant97, Description: Note Mark es una aplicación de código abierto para tomar notas. Antes de la 0.19.4, no se aplica una longitud mínima ni una entropía al valor de configuración JWT_SECRET. La aplicación acepta cualquier secreto decodificable en base64, independientemente de su tamaño, incluyendo secretos de tan solo 1 byte. Esta vulnerabilidad se corrige en la versión 0.19.4. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'enchant97', 'product': 'note-mark', 'versions': [{'status': 'affected', 'version': '< 0.19.4'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-44523', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-15T14:54:44.490880Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 15, 2026
Action Type Old Value New Value Added Reference https://github.com/enchant97/note-mark/security/advisories/GHSA-q6mh-rqwh-g786 -
New CVE Received by [email protected]
May. 14, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Added CWE CWE-345 Added CWE CWE-326 Added Reference https://github.com/enchant97/note-mark/security/advisories/GHSA-q6mh-rqwh-g786