CVE-2026-46611: Nicolargo Glances

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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 full system monitoring dataset from a victim's browser. This vulnerability is fixed in 4.5.5.

Affected products

• Nicolargo Glances: before 4.5.5 (fixed in 4.5.5)

Published 2026-06-25. Last modified 2026-06-26.