{"id":9913,"date":"2026-01-16T05:03:45","date_gmt":"2026-01-16T05:03:45","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2026\/01\/16\/new-vulnerability-in-n8n-html\/"},"modified":"2026-01-16T05:03:45","modified_gmt":"2026-01-16T05:03:45","slug":"new-vulnerability-in-n8n-html","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2026\/01\/16\/new-vulnerability-in-n8n-html\/","title":{"rendered":"New Vulnerability in n8n"},"content":{"rendered":"\n<div>New Vulnerability in n8n<\/div>\n<p> \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>\n<p><a href=\"https:\/\/www.cyera.com\/research-labs\/ni8mare-unauthenticated-remote-code-execution-in-n8n-cve-2026-21858\">This<\/a> isn\u2019t good:<\/p>\n<blockquote>\n<p>We discovered a critical vulnerability (<a href=\"https:\/\/github.com\/n8n-io\/n8n\/security\/advisories\/GHSA-v4pr-fm98-w9pg\">CVE-2026-21858, CVSS 10.0<\/a>) in n8n that enables attackers to take over locally deployed instances, impacting an estimated 100,000 servers globally. No official workarounds are available for this vulnerability. Users should upgrade to version 1.121.0 or later to remediate the vulnerability.<\/p>\n<\/blockquote>\n<p><a href=\"https:\/\/community.n8n.io\/t\/security-advisory-security-vulnerability-in-n8n-versions-1-65-1-120-4\/247305\">Three<\/a> <a href=\"https:\/\/thehackernews.com\/2026\/01\/n8n-supply-chain-attack-abuses.html\">technical<\/a><a> <\/a><a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2025-68668\">links<\/a> and two <a href=\"https:\/\/www.cybersecuritydive.com\/news\/critical-vulnerability-n8n-automation-platform\/809360\/\">news<\/a> <a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/max-severity-ni8mare-flaw-impacts-nearly-60-000-n8n-instances\/\">links<\/a>.<\/p>\n<\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><br \/>\n    Bruce Schneier<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/www.schneier.com\/blog\/archives\/2026\/01\/new-vulnerability-in-n8n.html\">Go to bruce schneier<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>New Vulnerability in n8n This isn\u2019t good: We discovered a critical vulnerability (CVE-2026-21858, CVSS 10.0) in n8n that enables attackers to take over locally deployed instances, impacting an estimated 100,000 servers globally. No official workarounds are available for this vulnerability. Users should upgrade to version 1.121.0 or later to remediate the vulnerability. Three technical links [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57,476,1,416],"tags":[87],"class_list":["post-9913","post","type-post","status-publish","format-standard","hentry","category-bruce-schneier","category-patching","category-uncategorized","category-vulnerabilities","tag-bruce-schneier"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/9913"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=9913"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/9913\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=9913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=9913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=9913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}