Summaryinfo

A vulnerability has been found in ellite Wallos up to 4.6.x and classified as critical. The affected element is an unknown function of the component AI Recommendations Endpoint. This manipulation of the argument AI Ollama host causes server-side request forgery. This vulnerability is handled as CVE-2026-33401. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in ellite Wallos up to 4.6.x and classified as critical. Affected by this vulnerability is an unknown part of the component AI Recommendations Endpoint. The manipulation of the argument AI Ollama host with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the patch introduced in commit e8a513591 (CVE-2026-30840) added SSRF protection to notification test endpoints but left three additional attack surfaces unprotected: the AI Ollama host parameter, the AI recommendations endpoint, and the notification cron job. An authenticated user can reach internal network services, cloud metadata endpoints (AWS IMDSv1, GCP, Azure IMDS), or localhost-bound services by supplying a crafted URL to any of these endpoints. This issue has been patched in version 4.7.0.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-33401 since 03/19/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 4.7.0 eliminates this vulnerability.

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Productinfo

Vendor

• ellite

Name

• Wallos

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6

Website

• Product: https://github.com/ellite/Wallos/

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