Bug 2459942 (CVE-2026-35587)

Summary: CVE-2026-35587 glances: Glances: Server-Side Request Forgery allows unauthorized access and credential leakage via public_api parameter
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Glances, an open-source system monitoring tool. An attacker with the ability to modify the Glances configuration can exploit a Server-Side Request Forgery (SSRF) vulnerability. This flaw, caused by improper validation of the `public_api` configuration parameter, allows the attacker to force the application to send requests to arbitrary internal or external network endpoints. This can lead to unauthorized access to internal services, retrieval of sensitive data, and potential leakage of credentials to attacker-controlled servers.
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Bug Depends On: 2460034, 2460037    
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Description OSIDB Bzimport 2026-04-21 00:02:29 UTC 
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.