CVE-2026-46606
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
glancesPyPI | < 4.5.5 | 4.5.5 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-v5r2-qh84-fjx5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-46606ghsaADVISORY
- github.com/nicolargo/glances/releases/tag/v4.5.5nvdWEB
- github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5nvdWEB
- github.com/pypa/advisory-database/tree/main/vulns/glances/PYSEC-2026-2497.yamlghsaWEB
- pypi.org/project/glancesghsaWEB
News mentions
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