CVE-2026-46606

NameCVE-2026-46606
DescriptionGlances 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
glances (PTS)bookworm3.3.1.1+dfsg-1vulnerable
trixie4.3.1+dfsg-1vulnerable
forky, sid4.5.5+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
glancessource(unstable)4.5.5+dfsg-1

Notes

[trixie] - glances <no-dsa> (Minor issue)
https://github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5

Search for package or bug name: Reporting problems