What is CVE-2026-33401?

CVE-2026-33401 is a medium-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-24.

How severe is CVE-2026-33401?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in Ellite Wallos

CVE-2026-33401

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…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.003 (20.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Ellite Wallos — versions < 4.7.0
Wallosapp Wallos

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33401?: CVE-2026-33401 is a medium-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-24.
How severe is CVE-2026-33401?: Medium severity. CVSS v3 base score is 6.5 out of 10.