nicolargo glances up to 4.5.1 REST API allow_origins cross-domain policy

Summaryinfo

A vulnerability was found in nicolargo glances up to 4.5.1 and classified as critical. This issue affects the function allow_origins of the component REST API. Executing a manipulation can lead to cross-domain policy. This vulnerability is handled as CVE-2026-32610. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in nicolargo glances up to 4.5.1. This vulnerability affects the function allow_origins of the component REST API. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, the Glances REST API web server ships with a default CORS configuration that sets `allow_origins=["*"]` combined with `allow_credentials=True`. When both of these options are enabled together, Starlette's `CORSMiddleware` reflects the requesting `Origin` header value in the `Access-Control-Allow-Origin` response header instead of returning the literal `*` wildcard. This effectively grants any website the ability to make credentialed cross-origin API requests to the Glances server, enabling cross-site data theft of system monitoring information, configuration secrets, and command line arguments from any user who has an active browser session with a Glances instance. Version 4.5.2 fixes the issue.

The advisory is available at github.com. This vulnerability was named CVE-2026-32610 since 03/12/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 4465169b71d93991f1e49740fe02428291099832 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• nicolargo

Name

• glances

Version

• 4.5.0
• 4.5.1

License

• open-source

Website

• Product: https://github.com/nicolargo/glances/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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