Description

OpenS100 (the reference implementation S-100 viewer) prior to commit 753cf29 contain a remote code execution vulnerability via an unrestricted Lua interpreter. The Portrayal Engine initializes Lua using luaL_openlibs() without sandboxing or capability restrictions, exposing standard libraries such as 'os' and 'io' to untrusted portrayal catalogues. An attacker can provide a malicious S-100 portrayal catalogue containing Lua scripts that execute arbitrary commands with the privileges of the OpenS100 process when a user imports the catalogue and loads a chart.

INFO

Published Date :

2026-02-17T14:29:05.423Z

Last Modified :

2026-03-23T15:44:10.384Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-22208 vulnerability.

Vendors Products
Opens100 Project
  • Opens100
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-22208.

URL Resource
https://github.com/S-100ExpertTeam/OpenS100/commit/753cf294434e8d3961f20a567c4d99151e3b530d cve-icon cve-icon
https://www.mdpi.com/1424-8220/26/4/1246 cve-icon cve-icon
https://www.vulncheck.com/advisories/opens100-portrayal-engine-unrestricted-lua-standard-library-access cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact