CVE-2026-68518
Description
A flaw was found in Glances, an open-source system monitoring tool. This vulnerability allows an attacker to bypass input sanitization by using adjacent unescaped Mustache variables. When an administrator-configured action template renders attacker-controlled process or container fields, these variables can reconstruct shell operators, leading to arbitrary command execution.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
Restrict network access to the Glances service to trusted hosts only, or configure it to listen only on localhost. Additionally, administrators should carefully review and validate any custom action templates to ensure they do not render untrusted input directly into shell commands. If the Glances service is reconfigured, a restart may be required for changes to take effect.
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability,Non-Repudiation
Technical Impact: Execute Unauthorized Code or Commands; DoS: Crash, Exit, or Restart; Read Files or Directories; Modify Files or Directories; Read Application Data; Modify Application Data; Hide Activities
Attackers could execute unauthorized operating system commands, which could then be used to disable the product, or read and modify data for which the attacker does not have permissions to access directly. Since the targeted application is directly executing the commands instead of the attacker, any malicious activities may appear to come from the application or the application's owner.
Frequently Asked Questions
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