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.

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. 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. (CVE-2026-32632)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-32632)

ID	Name	Product	Family	Severity
302941	Linux Distros Unpatched Vulnerability : CVE-2026-32632	Nessus	Misc.	medium
438836	SCA: security update for Glances (GHSA-hhcg-r27j-fhv9)	Tenable Cloud Security	SCA Checks	medium
438836	SCA: security update for Glances (GHSA-hhcg-r27j-fhv9)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2026-32632

medium

Tenable Plugins

medium

medium

medium