CVE-2026-35587: Glances has SSRF in IP Plugin via public_api leading to credential leakage

CVE-2026-35587 · Severity: high · CVSS 8.8 · Published 2026-04-21

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.

Technologies: Nicolargo Glances, glances (PyPI). Vendors: Nicolargo, PyPI.

Quick answers

Is CVE-2026-35587 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-35587 being exploited in the wild.
How severe is CVE-2026-35587?
High severity, with a CVSS score of 8.8, published 21 April 2026.
Which products and versions are affected?
glances (PyPI) < 4.5.4, ECOSYSTEM:introduced=0,fixed=4.5.4.
Is there a fix for CVE-2026-35587?
Yes. glances (PyPI): upgrade to 4.5.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-35587?
Check whether you run Nicolargo Glances or glances (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • glances (PyPI): upgrade to 4.5.4 or later
    pip install "glances>=4.5.4"

Affected products

  • Nicolargo Glances
  • glances (PyPI) < 4.5.4, ECOSYSTEM:introduced=0,fixed=4.5.4

Identifiers

  • CVE-2026-35587
  • GHSA-g5pq-48mj-jvw8
  • PYSEC-2026-2176

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.