CVE-2026-33407
Critical
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductWallos
PublishedMar 24, 2026
First seenMar 24, 2026
How to fix
Update
- wallosapp wallos4.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| wallosapp wallos | v < 4.7.0 | 4.7.0 |
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