CVE-2026-41688: Ellite Wallos

High severity, CVSS 7.7. EPSS: 0.4% chance of exploitation in the next 30 days.

Wallos is an open-source, self-hostable personal subscription tracker. In versions 4.8.4 and prior, the incomplete SSRF fix in Wallos validates webhook URLs via gethostbyname() but passes the original hostname to cURL without CURLOPT_RESOLVE pinning on 10 of 11 outbound HTTP endpoints, leaving a DNS rebinding TOCTOU window. At time of publication, there are no publicly available patches.

Affected products

• Ellite Wallos: up to and including 4.8.4

Published 2026-05-07. Last modified 2026-06-17.