关键漏洞信息 Advisories: OpenS100 Portrayal Engine Unrestricted Lua Standard Library Access Severity: Critical Date: 2/17/2026 CVE ID: CVE-2026-22208 Vulnerability Type: CVE-749 Exposed Dangerous Method or Function, CVE-829 Inclusion of Functionality from Untrusted Control Sphere CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H References: - Analysis of Security Vulnerabilities in S-100 Based Maritime Navigation Software - OpenS100 GitHub Patch Commit Credit: Hoyeon Cho, National Korea Maritime and Ocean University Description: OpenS100 (the reference implementation S-100 viewer) prior to commit 753cf29 contains 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.