SSRF in Nicolargo Glances
CVE-2026-35587
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Nicolargo Glances — versions < 4.5.4
Weakness classification (CWE)
References
- github.com/nicolargo/glances/security/advisories/GHSA-g5pq-48mj-jvw8 (Exploit, Mitigation, Vendor Advisory)
- github.com/nicolargo/glances/commit/d6808be66728956477cc4b544bab1acd71ac65fb (Patch)
Frequently asked questions
- What is CVE-2026-35587?
- CVE-2026-35587 is a high-severity vulnerability in Nicolargo Glances, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.8/10. Published 2026-04-21.
- How severe is CVE-2026-35587?
- High severity. CVSS v3 base score is 8.8 out of 10.