RCE in Nicolargo Glances
CVE-2026-33641
Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.3, Glances supports dynamic configuration values in which substrings enclosed in backticks are executed as system commands during configuration parsing. This behavior occurs in Config.get_value() and is implemented without validation or restriction of the executed commands. If an attacker can modify or influence configuration files, arbitrary commands will execute automatically with the privileges of the Glances process during startup or configuration reload. In deployments where Glances runs with elevated privileges (e.g., as a system service), this may lead to privilege escalation. This issue has been patched in version 4.5.3.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.008 · change: -0.001
Affected products
- Nicolargo Glances — versions < 4.5.3
Weakness classification (CWE)
References
- github.com/nicolargo/glances/security/advisories/GHSA-qhj7-v7h7-q4c7 (Exploit, Vendor Advisory)
- github.com/nicolargo/glances/commit/358d76a225fc21a9f95d2c4d7e46fafe64a644c6 (Patch)
- github.com/nicolargo/glances/releases/tag/v4.5.3 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-33641?
- CVE-2026-33641 is a high-severity vulnerability in Nicolargo Glances, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-04-02.
- How severe is CVE-2026-33641?
- High severity. CVSS v3 base score is 7.8 out of 10.