CVE-2026-33407

Wallos: SSRF via HTTP Proxy Environment Variable

State: Published
Severity: 8.3 High
Published: Mar 24, 2026
Updated: Mar 26, 2026
Reserved: Mar 19, 2026

Description

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. The server performs DNS resolution on user-supplied search terms, which can be controlled by attackers to trigger outbound requests to arbitrary domains. This issue has been patched in version 4.7.0.

Scores

CVSS	Score	Vector	Source
4.0	8.3 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)
CWE-922 Insecure Storage of Sensitive Information

Affected Products

Product	Versions
Wallosellite	< 4.7.0Affected

References

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