CVE-2026-30953 LinkAce affected by SSRF via link creation: NoPrivateIpRule not applied to LinkStoreRequest

High 7.7 Published 10 Mar 2026 Updated 11 Mar 2026

Attackers can exploit missing IP validation in LinkAce to perform Server-Side Request Forgery, accessing internal network resources and cloud metadata.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-30953?

CVE-2026-30953 is a high-severity server-side request forgery vulnerability in Kovah LinkAce, published on 10 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

LinkAce is a self-hosted archive to collect website links. When a user creates a link via POST /links, the server fetches HTML metadata from the provided URL (LinkRepository::create() calls HtmlMeta::getFromUrl()). The LinkStoreRequest validation rules do not include NoPrivateIpRule, allowing server-side requests to internal network addresses, Docker service hostnames, and cloud metadata endpoints. The project already has a NoPrivateIpRule class (app/Rules/NoPrivateIpRule.php) but it is only applied in FetchController.php (line 99), not in the primary link creation path.

Weakness: CWE-918

Which versions are affected by CVE-2026-30953?

It affects 1 product.

Products include Linkace Linkace.

How do I fix CVE-2026-30953?

No fix has been published for CVE-2026-30953 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-30953 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30953 exists.

Sources

Also known as GHSA-f2mp-q78r-7jx7.