{"id":77277,"date":"2026-02-17T17:59:05","date_gmt":"2026-02-17T14:29:05","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-22208-opens100-portrayal-engine-unrestricted-lua-standard-library-access\/"},"modified":"2026-02-17T17:59:05","modified_gmt":"2026-02-17T14:29:05","slug":"cve-2026-22208-opens100-portrayal-engine-unrestricted-lua-standard-library-access","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-22208-opens100-portrayal-engine-unrestricted-lua-standard-library-access\/","title":{"rendered":"CVE-2026-22208 &#8211; OpenS100 Portrayal Engine Unrestricted Lua Standard Library Access"},"content":{"rendered":"<p>CVE ID : CVE-2026-22208<\/p>\n<p>Published :  Feb. 17, 2026, 2:29 p.m. | 29\u00a0minutes ago<\/p>\n<p>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 &#8216;os&#8217; and &#8216;io&#8217; 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.<\/p>\n<p>Severity: 9.4 | CRITICAL<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2026-22208 Published : Feb. 17, 2026, 2:29 p.m. | 29\u00a0minutes ago 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 &#8216;os&#8217; &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-77277","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=77277"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77277\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}