Unrated severityNVD Advisory· Published Mar 24, 2026· Updated Mar 26, 2026
Wallos: SSRF via HTTP Proxy Environment Variable
CVE-2026-33407
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.
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Affected products
2Patches
Vulnerability mechanics
References
2- github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecefmitrex_refsource_MISC
- github.com/ellite/Wallos/security/advisories/GHSA-hhjq-82f8-m6rcmitrex_refsource_CONFIRM
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