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CVE-2026-35587

Nicolargo Glances server-side request forgery (SSRF)

8.8 HIGHPublic exploitEPSS 0.47%
  1. Published20 Apr 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Nicolargo Glances< 4.5.4

Remediation

Fixed in
Nicolargo Glances≥ 4.5.4

References

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Frequently asked

Is CVE-2026-35587 being actively exploited?

CVE-2026-35587 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.47%.

How severe is CVE-2026-35587?

CVE-2026-35587 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.47% probability of exploitation.

Which products are affected by CVE-2026-35587?

Affected products include Nicolargo Glances.

How do I fix CVE-2026-35587?

Upgrade affected software to a fixed version, for example Nicolargo Glances 4.5.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.