CVE-2026-35516

Medium

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.

SeverityMedium
CVSS5.0
Exploit probability—
ProductLinkace
PublishedApr 7, 2026
First seenApr 7, 2026

How to fix

Update
  • linkace linkace2.5.4 or later

Affected products

ProductAffected versionsFixed in
linkace linkacev < 2.5.42.5.4

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