nicolargo Glances up to 4.5.5 Action Template glances/actions.py _sanitize_mustache_dict escape output

Summaryinfo

A vulnerability was found in nicolargo Glances up to 4.5.5 and classified as problematic. This issue affects the function _sanitize_mustache_dict of the file glances/actions.py of the component Action Template. Executing a manipulation can lead to escape output. This vulnerability appears as CVE-2026-68518. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in nicolargo Glances up to 4.5.5. It has been declared as problematic. This vulnerability affects the function _sanitize_mustache_dict of the file glances/actions.py of the component Action Template. The manipulation with an unknown input leads to a escape output vulnerability. The CWE definition for the vulnerability is CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, _sanitize_mustache_dict() in glances/actions.py sanitizes individual Mustache values before chevron.render(), allowing adjacent unescaped Mustache variables to reconstruct shell operators that secure_popen() executes when attacker-controlled process or container fields are rendered by an administrator-configured action template. This issue is fixed in 4.5.6.

The advisory is available at github.com. This vulnerability was named CVE-2026-68518 since 07/30/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.6 eliminates this vulnerability.

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Productinfo

Vendor

• nicolargo

Name

• Glances

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5

Website

• Product: https://github.com/nicolargo/glances/

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