SSRF Vulnerability in Wallos Personal Subscription Tracker
CVE-2026-33407

8.3HIGH

Key Information:

Vendor

Ellite

Status
Wallos
Vendor
CVE Published:
24 March 2026

What is CVE-2026-33407?

Wallos, an open-source personal subscription tracker, has a vulnerability that allows Server-Side Request Forgery (SSRF) through improper handling of HTTP_PROXY and HTTPS_PROXY environment variables. This flaw enables attackers to manipulate search terms, leading the server to perform DNS resolutions and execute outbound requests to arbitrary domains. This vulnerability existed in versions prior to 4.7.0, which has since been patched to mitigate the associated risks.

Affected Version(s)

Wallos < 4.7.0

References

https://github.com/ellite/Wallos/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/ellite/Wallos/commit/e87387f0ebb540cd3...
x_refsource_MISC

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.