Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

SummaryThe Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. CVE-2026-32632 patched in 4.5.2 added TrustedHostMiddleware to the REST/WebUI server; the MCP server has had equivalent protection...

Linux Distros Unpatched Vulnerability : CVE-2026-46608

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s introduced a configurable CORS origin lis...

Linux Distros Unpatched Vulnerability : CVE-2026-46611

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s, implemented in glances/server.py does no...

EUVD-2026-39514

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. An attacker can exploit DNS rebinding to exfiltrate the...

CVE-2026-46611

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. An attacker can exploit DNS rebinding to exfiltrate the...

GHSA-87QC-FJ39-WCCR Glances: XML-RPC Multi-Origin CORS Configuration Silently Falls Back to Wildcard (Incomplete Fix for CVE-2026-33533)

Summary The Glances XML-RPC server glances -s introduced a configurable CORS origin list in version 4.5.3 as a mitigation for CVE 2026-33533. However, the implementation silently falls back to Access-Control-Allow-Origin: whenever corsorigins contains more than one entry. An operator who configur...