{"id":37540,"date":"2026-01-27T09:53:29","date_gmt":"2026-01-27T09:53:29","guid":{"rendered":"http:\/\/localhost\/?p=37540"},"modified":"2026-01-27T09:53:29","modified_gmt":"2026-01-27T09:53:29","slug":"authenticated-users-can-bypass-the-expression-sandbox-mechanism-to-achieve-full-remote-code-executio","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=37540","title":{"rendered":"Authenticated users can bypass the Expression sandbox mechanism to achieve full remote code execution on n8n\u2019s main node._CVE-2026-1470"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;n8n contains a critical Remote Code Execution (RCE) vulnerability in its workflow Expression evaluation system. Expressions supplied by authenticated users during workflow configuration may be evaluated in an execution context that is not sufficiently isolated from the underlying runtime.\\n\\nAn authenticated attacker could abuse this behavior to execute arbitrary code with the privileges of the n8n process. 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Expressions supplied by authenticated users during workflow configuration may be&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[9,6,8,45,12,13,7,11,5],"class_list":["post-37540","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-critical","tag-cve","tag-cvss","tag-cvss-99","tag-exploit","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Authenticated users can bypass the Expression sandbox mechanism to achieve full remote code execution on n8n\u2019s main node._CVE-2026-1470 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=37540\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Authenticated users can bypass the Expression sandbox mechanism to achieve full remote code execution on n8n\u2019s main node._CVE-2026-1470 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;n8n contains a critical Remote Code Execution (RCE) vulnerability in its workflow Expression evaluation system. 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