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CVE-2026-46606

Glances: Command Injection via KVM/QEMU VM Domain Names in glances/plugins/vms/engines/virsh.py

HIGH
7.8
CVSS Score
Published: June 25, 2026 at 06:02 PM UTC
Updated: October 25, 2026 at 10:10 PM UTC
1 product affected across 1 vendorGlances

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Glances· Nicolargo
90%
v < 4.5.5
Affected range stops below 4.5.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRM
Source: cverecord
https://github.com/nicolargo/glances/security/advisories/GHSA-v5r2-qh84-fjx5
x_refsource_MISC
Source: cverecord
https://github.com/nicolargo/glances/releases/tag/v4.5.5

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78

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