CVE-2026-41688 HIGH

CVE-2026-41688: Incomplete fix for CVE-2026-33399: SSRF in Wallos

Vendor Ellite
Product Wallos
Weakness CWE-918 · SSRF
Published May 7, 2026
Last update May 7, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 7, 2026 Record updated