Description

Glances is an open-source system cross-platform monitoring tool. Glances recently added DNS rebinding protection for the MCP endpoint, but prior to version 4.5.2, the main REST/WebUI FastAPI application still accepts arbitrary `Host` headers and does not apply `TrustedHostMiddleware` or an equivalent host allowlist. As a result, the REST API, WebUI, and token endpoint remain reachable through attacker-controlled domains in classic DNS rebinding scenarios. Once the victim browser has rebound the attacker domain to the Glances service, same-origin policy no longer protects the API because the browser considers the rebinding domain to be the origin. This is a distinct issue from the previously reported default CORS weakness. CORS is not required for exploitation here because DNS rebinding causes the victim browser to treat the malicious domain as same-origin with the rebinding target. Version 4.5.2 contains a patch for the issue.

INFO

Published Date :

2026-03-18T17:47:25.929Z

Last Modified :

2026-03-18T18:15:59.648Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-32632 vulnerability.

Vendors Products
Nicolargo
  • Glances

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
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