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CVE-2026-35516— LinkAce has SSRF via CheckLinksCommand - Link URL Update Bypasses laravel-html-meta Protection

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 2.5.4之前版本存在代码问题漏洞，该漏洞源于未检查私有IP，可能导致经过身份验证的用户通过创建和更新链接读取内部服务响应，从而泄露云凭据、内部服务数据和网络拓扑。

CVSS 5.0 · Medium EPSS 0.30% · P21
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I. Basic Information for CVE-2026-35516

Vulnerability Information
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Vulnerability Title
LinkAce has SSRF via CheckLinksCommand - Link URL Update Bypasses laravel-html-meta Protection
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. Prior to 2.5.4, LinkRepository::update and CheckLinksCommand::checkLink do not check for private IPs. An authenticated user can read responses from internal services (AWS IMDSv1, cloud metadata, internal APIs) by creating a link with a public URL and then updating it to a private IP. The links:check cron job makes the request server-side without IP filtering. This can expose cloud credentials, internal service data, and network topology. This vulnerability is fixed in 2.5.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
LinkAce 代码问题漏洞
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 2.5.4之前版本存在代码问题漏洞，该漏洞源于未检查私有IP，可能导致经过身份验证的用户通过创建和更新链接读取内部服务响应，从而泄露云凭据、内部服务数据和网络拓扑。
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 < 2.5.4 -

II. Public POCs for CVE-2026-35516

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III. Intelligence Information for CVE-2026-35516

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Vendor Advisories for CVE-2026-35516 (1)

IV. Related Vulnerabilities

Same product: LinkAce
Same vendor: Kovah
Same weakness: CWE-918

V. Comments for CVE-2026-35516

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