What is CVE-2026-33407?

CVE-2026-33407 is a critical-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2026-03-24.

How severe is CVE-2026-33407?

Critical severity. CVSS v3 base score is 9.1 out of 10.

SSRF in Ellite Wallos

CVE-2026-33407

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, Wallos endpoints/logos/search.php accepts HTTP_PROXY and HTTPS_PROXY environment variables without validation, enabling SSRF via proxy hijacking…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.004 (29.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Ellite Wallos — versions < 4.7.0
Wallosapp Wallos

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2026-33407?: CVE-2026-33407 is a critical-severity vulnerability in Ellite Wallos, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2026-03-24.
How severe is CVE-2026-33407?: Critical severity. CVSS v3 base score is 9.1 out of 10.