CVE-2026-46606
Glances is Vulnerable to Command Injection via KVM/QEMU VM Domain Names in glances/plugins/vms/engines/virsh.py
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | glances | < 4.5.5 | 4.5.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-v5r2-qh84-fjx5
- https://github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5
- https://github.com/nicolargo/glances/releases/tag/v4.5.5
- https://nvd.nist.gov/vuln/detail/CVE-2026-46606
- https://github.com/nicolargo/glances
- https://github.com/pypa/advisory-database/tree/main/vulns/glances/PYSEC-2026-2497.yaml
- https://pypi.org/project/glances