nicolargo glances up to 4.5.3 Configuration Parameter public_api server-side request forgery

Summaryinfo

A vulnerability described as critical has been identified in nicolargo glances up to 4.5.3. The impacted element is the function public_api of the component Configuration Parameter Handler. The manipulation results in server-side request forgery. This vulnerability was named CVE-2026-35587. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in nicolargo glances up to 4.5.3. Affected is the function public_api of the component Configuration Parameter Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.4, a Server-Side Request Forgery (SSRF) vulnerability exists in the Glances IP plugin due to improper validation of the public_api configuration parameter. The value of public_api is used directly in outbound HTTP requests without any scheme restriction or hostname/IP validation. An attacker who can modify the Glances configuration can force the application to send requests to arbitrary internal or external endpoints. Additionally, when public_username and public_password are set, Glances automatically includes these credentials in the Authorization: Basic header, resulting in credential leakage to attacker-controlled servers. This vulnerability can be exploited to access internal network services, retrieve sensitive data from cloud metadata endpoints, and/or exfiltrate credentials via outbound HTTP requests. The issue arises because public_api is passed directly to the HTTP client (urlopen_auth) without validation, allowing unrestricted outbound connections and unintended disclosure of sensitive information. Version 4.5.4 contains a patch.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-35587 since 04/03/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.4 eliminates this vulnerability. Applying the patch d6808be66728956477cc4b544bab1acd71ac65fb 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.

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Productinfo

Vendor

• nicolargo

Name

• glances

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3

License

• open-source

Website

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

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