{"id":2269,"date":"2026-09-01T17:34:56","date_gmt":"2026-09-01T17:34:56","guid":{"rendered":"https:\/\/netguide.io\/news\/2026\/09\/01\/langflow-cve-2026-0768-rce-aktiv-ausgenutzt\/"},"modified":"2026-09-01T17:34:56","modified_gmt":"2026-09-01T17:34:56","slug":"langflow-cve-2026-0768-rce-aktiv-ausgenutzt","status":"publish","type":"post","link":"https:\/\/netguide.io\/news\/de\/2026\/09\/01\/langflow-cve-2026-0768-rce-aktiv-ausgenutzt\/","title":{"rendered":"Kritische RCE-L\u00fccke in Langflow (CVE-2026-0768) wird aktiv ausgenutzt \u2013 kein Patch verf\u00fcgbar"},"content":{"rendered":"<div id=\"netgu-873754278\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>\n<p class=\"wp-block-paragraph\"><strong>Eine kritische Sicherheitsl\u00fccke im KI-Workflow-Tool Langflow wird seit Ende August aktiv ausgenutzt. \u00dcber CVE-2026-0768 (CVSS 9.8) k\u00f6nnen nicht authentifizierte Angreifer aus der Ferne beliebigen Code als root ausf\u00fchren \u2013 einen Hersteller-Patch, der die L\u00fccke gezielt schlie\u00dft, gibt es bislang nicht.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Was die L\u00fccke so gef\u00e4hrlich macht<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Der Fehler steckt im Code-Validator des Custom-Component-Editors. Der validate-Endpunkt nimmt \u00fcber den Parameter <code>code<\/code> einen vom Nutzer gelieferten String entgegen und f\u00fchrt ihn ohne ausreichende Pr\u00fcfung als Python-Code aus. Weil daf\u00fcr keine Anmeldung n\u00f6tig ist, gen\u00fcgt der Netzwerkzugriff auf eine offen erreichbare Instanz, um Befehle mit root-Rechten abzusetzen. Entdeckt und im Rahmen von Trend Micros Zero Day Initiative (ZDI-26-034) gemeldet wurde die Schwachstelle bereits im Juli 2025; ver\u00f6ffentlicht wurde sie im Januar 2026 als Zero-Day.<\/p><div id=\"netgu-2715549754\" class=\"netgu-content netgu-entity-placement\"><aside class=\"deals-top deals-top--compact\">\n\n\t\t\t<h3 class=\"deals-top__title\">Top-Deals<\/h3>\n\t\n\t\t\t<ul class=\"deals-top__list\">\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/powera-zelda-tears-of-the-kingdom-switch-huelle-fuer-177e\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/Abbildung_2123779.jpeg-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">PowerA Zelda Tears of the Kingdom Switch H\u00fclle 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class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Diablo III : Eternal Collection \u2013 Nintendo Switch inklusive DLCs<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">19.79 \u20ac<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>59.99 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-67%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t13\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/gmktec-nucbox-g10-mini-pc-amd-ryzen5-3500u-barebone\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2834157_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">GMKtec NucBox G10 Mini-PC AMD Ryzen5 3500U \u2013 Barebone<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">125.69 \u20ac<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>159.99 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-21%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t10\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/sony-wh-1000xm5-kopfhoerer-mit-softcase-fuer-169e\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/Abbildung_2517571.jpeg-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Sony WH-1000XM5 Kopfh\u00f6rer mit Softcase f\u00fcr 169\u20ac<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">169.00 \u20ac<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>194.99 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-13%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t2\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/bosch-turbinenhaecksler-axt-25-tc-stark-und-vielseitig\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2834270_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Bosch Turbinenh\u00e4cksler AXT 25 TC \u2013 Stark und vielseitig<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">379.99 \u20ac<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<s>409.94 \u20ac<\/s>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-discount\">-7%<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t2\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t<p class=\"deals-top__more\">\n\t\t\t\t<a href=\"https:\/\/netguide.io\/deals\/\">Alle Deals ansehen \u2192<\/a>\n\t\t\t<\/p>\n\t\t\t<\/aside>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Hunderte Angriffsversuche binnen Stunden<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Am 30. August 2026 registrierte der Sicherheitsdienstleister VulnCheck die ersten Exploit-Versuche \u2013 zun\u00e4chst rund 50, binnen eines Wochenendes stieg die Zahl auf etwa 360. Die Angreifer betreiben vor allem Reconnaissance und Credential-Harvesting: Sie fragen Umgebungsvariablen wie LANGFLOW_SUPERUSER sowie OpenAI- und AWS-Schl\u00fcssel ab und lesen Dateien wie <code>\/root\/.cache\/langflow\/secret_key<\/code> aus. Der Gro\u00dfteil des Traffics stammt laut VulnCheck aus Russland. Auf der CISA-KEV-Liste steht CVE-2026-0768 \u2013 anders als mehrere andere Langflow-L\u00fccken \u2013 bislang nicht.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Warum das \u00fcber Langflow hinaus z\u00e4hlt<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Langflow steht sinnbildlich f\u00fcr eine ganze Klasse selbstgehosteter KI-Bauk\u00e4sten, die Nutzer schnell und oft ohne H\u00e4rtung ins Netz stellen. Genau dort sammeln sich API-Schl\u00fcssel und Secrets, die einen Server zum Sprungbrett f\u00fcr weitere Angriffe machen. Weil ein dedizierter Fix fehlt, nennt die ZDI als einzig belastbare Ma\u00dfnahme, den Zugriff auf das Produkt einzuschr\u00e4nken:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Betroffen: alle Langflow-Releases bis einschlie\u00dflich 1.4.2 (ein Hersteller-Patch speziell f\u00fcr CVE-2026-0768 ist nicht best\u00e4tigt)<\/li>\n<li>Langflow niemals offen ins Internet stellen \u2013 nur hinter VPN, Auth-Proxy oder WAF betreiben<\/li>\n<li>Auf die aktuell gepflegte Langflow-Version aktualisieren und Logs auf verd\u00e4chtige validate-Anfragen mit Python-Code pr\u00fcfen<\/li>\n<li>Exponierte Secrets (OpenAI-, AWS-, Superuser-Zug\u00e4nge) umgehend rotieren<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Quellen: <a href=\"https:\/\/www.zerodayinitiative.com\/advisories\/ZDI-26-034\/\" target=\"_blank\" rel=\"noopener\">Zero Day Initiative (ZDI-26-034)<\/a>, <a href=\"https:\/\/www.securityweek.com\/hackers-start-exploiting-critical-langflow-vulnerability\/\" target=\"_blank\" rel=\"noopener\">SecurityWeek<\/a>, <a href=\"https:\/\/thehackernews.com\/2026\/09\/attackers-exploit-critical-langflow-and.html\" target=\"_blank\" rel=\"noopener\">The Hacker News<\/a>, <a href=\"https:\/\/app.opencve.io\/cve\/CVE-2026-0768\" target=\"_blank\" rel=\"noopener\">OpenCVE<\/a>.<\/em><\/p>\n<div id=\"netgu-78222965\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00dcber CVE-2026-0768 (CVSS 9.8) f\u00fchren Angreifer unauthentifiziert Code als root in Langflow aus. Hunderte Exploit-Versuche seit dem 30. August, ein Hersteller-Patch fehlt bislang.<\/p>\n","protected":false},"author":1,"featured_media":1722,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[],"class_list":["post-2269","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/2269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/comments?post=2269"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/posts\/2269\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media\/1722"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/media?parent=2269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/categories?post=2269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/news\/wp-json\/wp\/v2\/tags?post=2269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}