CVE-2026-33954— LinkAce discloses private notesto unauthorized authenticated users via the web link detail page
Quick assessment
Affected
Kovah LinkAce
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.5.3之前版本存在授权问题漏洞，该漏洞源于Web链接详情页面渲染笔记时未应用等效的可见性过滤，可能导致经过身份验证的用户读取其他用户附加在链接上的私有笔记。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-33954
Vulnerability Information
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Vulnerability Title
LinkAce discloses private notesto unauthorized authenticated users via the web link detail page
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. In versions prior to 2.5.3, a private note attached to a non-private link can be disclosed to a different authenticated user via the web interface. The API appears to correctly enforce note visibility, but the web link detail page renders notes without applying equivalent visibility filtering. As a result, an authenticated user who is allowed to view another user's `internal` or `public` link can read that user's `private` notes attached to the link. Version 2.5.3 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
LinkAce 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.5.3之前版本存在授权问题漏洞，该漏洞源于Web链接详情页面渲染笔记时未应用等效的可见性过滤，可能导致经过身份验证的用户读取其他用户附加在链接上的私有笔记。
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-2026-33954
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IV. Related Vulnerabilities
Same product: LinkAce
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CVE-2026-40905
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Same vendor: Kovah
-
CVE-2026-49436
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CVE-2026-45342
LinkAce: IDOR in Update Policies Allows Any Authenticated Us -
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LinkAce - Stored XSS via Unsanitized SSO User's Name Rendere -
CVE-2026-45344
LinkAce: Setup database password newline injection enables p -
CVE-2026-40905
LinkAce: Password Reset Poisoning via X-Forwarded-Host Heade
Same weakness: CWE-285
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V. Comments for CVE-2026-33954
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