{"id":4288,"date":"2026-10-20T01:33:14","date_gmt":"2026-10-20T01:33:14","guid":{"rendered":"https:\/\/www.ucartz.com\/updates\/n8n-stored-cross-site-scripting-vulnerability-cve-2025-58177-medium-severity\/"},"modified":"2026-10-20T01:33:22","modified_gmt":"2026-10-20T01:33:22","slug":"n8n-stored-cross-site-scripting-vulnerability-cve-2025-58177-medium-severity","status":"publish","type":"post","link":"https:\/\/www.ucartz.com\/updates\/n8n-stored-cross-site-scripting-vulnerability-cve-2025-58177-medium-severity\/","title":{"rendered":"n8n Stored Cross-Site Scripting Vulnerability (CVE-2025-58177) \u2014 Medium Severity"},"content":{"rendered":"<h2>Understanding the n8n Stored XSS Vulnerability<\/h2>\n<p>The n8n workflow automation platform, specifically its LangChain Chat Trigger node, was recently found to have a stored Cross-Site Scripting (XSS) vulnerability. This means a malicious actor could embed harmful code within the platform&#8217;s configuration, which would then execute in the web browser of anyone who views the affected public chat interface.<\/p>\n<p>Imagine visiting a public chat link and, without knowing it, your browser runs a hidden script. This script could be designed to steal your session cookies, redirect you to a phishing site, or collect other sensitive information, making this a significant concern for users and administrators alike.<\/p>\n<h2>CVE Details<\/h2>\n<ul>\n<li><strong>Product:<\/strong> n8n workflow automation platform (specifically the `@n8n\/n8n-nodes-langchain.chatTrigger` component)<\/li>\n<li><strong>CVE ID:<\/strong> CVE-2025-58177<\/li>\n<li><strong>Published:<\/strong> September 15, 2025<\/li>\n<li><strong>Severity:<\/strong> Medium<\/li>\n<li><strong>Status:<\/strong> Analyzed<\/li>\n<\/ul>\n<h2>Affected Products<\/h2>\n<p>This vulnerability impacts versions of n8n ranging from <strong>1.24.0 up to, but not including, 1.107.0<\/strong>. Users running any version within this range are advised to take immediate action.<\/p>\n<h2>Current Status<\/h2>\n<p>The vulnerability has been officially &#8220;Analyzed.&#8221; This indicates that the issue has been thoroughly investigated and understood by the developers.<\/p>\n<h2>Severity Level<\/h2>\n<p>Rated as &#8220;Medium&#8221; severity, this XSS vulnerability can still pose a considerable risk. While it typically requires some user interaction (like an authorized user configuring the node and a different user visiting the malicious public chat URL), the potential impact is significant. Successful exploitation could lead to:<\/p>\n<ul>\n<li><strong>Session Hijacking:<\/strong> Attackers could steal session cookies, impersonating legitimate users.<\/li>\n<li><strong>Phishing Attacks:<\/strong> Users could be redirected to fake websites designed to steal credentials.<\/li>\n<li><strong>Data Theft:<\/strong> Sensitive data displayed or stored in the user&#8217;s browser could be exfiltrated.<\/li>\n<\/ul>\n<h2>Possible Solutions<\/h2>\n<p>The good news is that a fix is available and simple to implement:<\/p>\n<ol>\n<li><strong>Update Immediately:<\/strong> The primary recommendation is to update your n8n instance to <strong>version 1.107.0 or later<\/strong>. This version includes critical updates that introduce robust parameter validation and type assertions, preventing malicious scripts from being injected into sensitive fields like <code>initialMessages<\/code>.<\/li>\n<li><strong>Workaround:<\/strong> If an immediate update isn&#8217;t feasible, you can mitigate the risk by <strong>disabling the affected <code>chatTrigger<\/code> node<\/strong> within your n8n environment. This will prevent the vulnerable component from being exposed.<\/li>\n<\/ol>\n<p>It&#8217;s crucial to implement these solutions promptly to protect your n8n instance and its users from potential attacks.<\/p>\n<h2>References<\/h2>\n<p>https:\/\/github.com\/n8n-io\/n8n\/commit\/d4ef191be0b39b65efa68559a3b8d5dad2e102b2<\/p>\n<p>https:\/\/github.com\/n8n-io\/n8n\/pull\/18148<\/p>\n<p>https:\/\/github.com\/n8n-io\/n8n\/security\/advisories\/GHSA-mvh4-2cm2-6hpg<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding the n8n Stored XSS Vulnerability The n8n workflow automation platform, specifically its LangChain Chat Trigger node, was recently found to have a stored Cross-Site Scripting (XSS) vulnerability.<\/p>\n","protected":false},"author":17,"featured_media":3515,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[817,1308,1067,1068,692],"class_list":["post-4288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security","tag-cross-site-scripting","tag-cybersecurity-vulnerability","tag-n8n","tag-workflow-automation","tag-xss"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>n8n Stored Cross-Site Scripting (CVE-2025-58177) | Ucartz<\/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:\/\/www.ucartz.com\/updates\/n8n-stored-cross-site-scripting-vulnerability-cve-2025-58177-medium-severity\/\" \/>\n<meta property=\"og:locale\" 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