CVE-2026-46606

Published: Jun 25, 2026Modified: Jun 25, 2026Deferred

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: security-advisories@github.com (Secondary)

Description

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances KVM/QEMU monitoring engine (glances/plugins/vms/engines/virsh.py) passes VM domain names, read directly from virsh list --all output, into f-string command templates that are processed by secure_popen(). secure_popen() is explicitly designed to interpret &&, |, and > as shell operators. Because domain names are never sanitised before interpolation, any user with the ability to create or rename a KVM/QEMU virtual machine can execute arbitrary commands as the OS user running Glances — commonly root on hypervisor hosts. This vulnerability is fixed in 4.5.5.

Related CWEs

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References (3)

https://github.com/nicolargo/glances/releases/tag/v4.5.5

Source: security-advisories@github.com

https://github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5

Source: security-advisories@github.com

https://github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

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