CVE-2026-30828 Wallos: SSRF via url parameter leading to File Traversal

High 8.7 Published 7 Mar 2026 Updated 9 Mar 2026

An attacker can exploit the url parameter to perform Server-Side Request Forgery and read local system files in Wallos.

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

What is CVE-2026-30828?

CVE-2026-30828 is a high-severity server-side request forgery vulnerability in ellite Wallos, published on 7 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, the url parameter can be used to retrieve local system files. This issue has been patched in version 4.6.2.

Weakness: CWE-918, CWE-29, CWE-22

Which versions are affected by CVE-2026-30828?

It affects 1 product.

Products include Wallosapp Wallos.

How do I fix CVE-2026-30828?

No fix has been published for CVE-2026-30828 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-2026-30828 being exploited?

There is no known exploitation of CVE-2026-30828 in the wild and no public exploit code.

Sources

Also known as GHSA-p7qj-669r-grvc.