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CVE-2026-45344— LinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instances

Quick assessment

Affected
Kovah LinkAce
Exploitation
Public or AI PoC available; prioritize validation
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 2.5.6之前版本存在注入漏洞，该漏洞源于设置数据库配置流程接受攻击者控制的数据库凭数字段并写入.env而未转义，远程攻击者可提供其控制的数据库并注入邮件配置变量，在应用发送邮件时实现命令执行。

CVSS 8.1 · High EPSS 0.46% · P38

Affected Version Matrix 1

VendorProduct Version RangeStatus
Kovah LinkAce < 2.5.6 affected
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I. Basic Information for CVE-2026-45344

Vulnerability Information
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Vulnerability Title
LinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instances
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, the setup database configuration flow on uninitialized LinkAce instances accepts attacker-controlled database credential fields and writes them back into .env without escaping. A remote attacker who can reach the setup endpoints and supply a database they control can inject mail configuration variables and achieve command execution when the application later sends mail. This vulnerability is fixed in 2.5.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
LinkAce 注入漏洞
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 2.5.6之前版本存在注入漏洞，该漏洞源于设置数据库配置流程接受攻击者控制的数据库凭数字段并写入.env而未转义，远程攻击者可提供其控制的数据库并注入邮件配置变量，在应用发送邮件时实现命令执行。
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

Vendor Product Affected Versions CPE Subscribe
Kovah LinkAce < 2.5.6 -

II. Public POCs for CVE-2026-45344

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9458 chars
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III. Intelligence Information for CVE-2026-45344

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Vendor Advisories for CVE-2026-45344 (1)

Same Patch Batch · Kovah · 2026-05-28 · 3 CVEs total

CVE-2026-45342 LinkAce: IDOR in Update Policies Allows Any Authenticated User to Overwrite Other Users' L
CVE-2026-45343 LinkAce - Stored XSS via Unsanitized SSO User's Name Rendered in Admin Audit Log Allows Se

IV. Related Vulnerabilities

Same product: LinkAce
Same vendor: Kovah
Same weakness: CWE-74

V. Comments for CVE-2026-45344

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