CVE-2026-44523— Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-44523
Vulnerability Information
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Vulnerability Title
Note Mark: JWT Secret Weakness allows Full Account Takeover via token forgery
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的加密强度
Source: NVD (National Vulnerability Database)
Vulnerability Title
Note Mark 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Note Mark是Leo Spratt个人开发者的一个基于网络的Markdown笔记应用程序。 Note Mark 0.19.4之前版本存在加密问题漏洞，该漏洞源于JWT_SECRET配置值未强制最小长度或熵，可能导致弱密钥攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44523
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IV. Related Vulnerabilities
Same product: note-mark
- CVE-2026-44522
Note Mark: Arbitrary File Write via Path Traversal in Asset - CVE-2026-41572
Note Mark: Unauthenticated read of notes and assets in soft- - CVE-2026-41571
Note Mark: OIDC-registered users authenticated by submitting - CVE-2026-40265
Note Mark has Broken Access Control on Asset Download - CVE-2026-40263
Note Mark: Username Enumeration via Login Endpoint Timing Si
Same vendor: enchant97
- CVE-2026-44522
Note Mark: Arbitrary File Write via Path Traversal in Asset - CVE-2026-41572
Note Mark: Unauthenticated read of notes and assets in soft- - CVE-2026-41571
Note Mark: OIDC-registered users authenticated by submitting - CVE-2026-40265
Note Mark has Broken Access Control on Asset Download - CVE-2026-40263
Note Mark: Username Enumeration via Login Endpoint Timing Si
Same weakness: CWE-326
- CVE-2026-33361
Meari weak XOR obfuscation - CVE-2018-25272
ELBA5 5.8.0 Remote Code Execution via Database Access - CVE-2025-1241
Encryption vulnerable to brute-force decryption in GoAnywher - CVE-2026-5363
Use of weak cryptographic key in TP-Link Archer C7 - CVE-2026-39349
OrangeHRM Uses AES-ECB for Sensitive Data Encryption Enables
V. Comments for CVE-2026-44523
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