CVE-2026-33953

High

Description

LinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs server-side requests to internal-only resources when those resources are referenced through an internal hostname. This allows an authenticated user to trigger server-side requests to internal services reachable by the LinkAce server but not directly reachable by an external user. Version 2.5.3 patches the issue.

SeverityHigh
CVSS8.5
Exploit probability—
ProductLinkace
PublishedMar 27, 2026
First seenMar 27, 2026

How to fix

Update
  • linkace linkace2.5.3 or later

Affected products

ProductAffected versionsFixed in
linkace linkacev < 2.5.32.5.3

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.