CVE-2026-46606
Glances: Command Injection via KVM/QEMU VM Domain Names in glances/plugins/vms/engines/virsh.py
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.
INFO
Published Date :
June 25, 2026, 6:02 p.m.
Last Modified :
June 25, 2026, 6:02 p.m.
Remotely Exploit :
No
Source :
GitHub_M
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Glances to version 4.5.5 or later.
- Ensure Glances is running with least privilege.
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