Is CVE-2026-33407 actively exploited?

No active exploitation of CVE-2026-33407 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33407 be exploited remotely?

Yes. CVE-2026-33407 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33407?

CVE-2026-33407 has a CVSS score of 9.1 (CRITICAL).

HOME VULNERABILITIESCVE-2026-33407

CRITICAL

CVE-2026-33407

CWE-918Published: March 24, 2026· Updated: Mar 26, 2026

9.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-33407 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.