--- title: Critical Citrix NetScaler Flaw Draws CitrixBleed... description: A critical out-of-bounds memory read vulnerability (CVE-2026-3055, CVSS 9.3) has been disclosed in Citrix NetScaler ADC and NetScaler Gateway, affecting... canonical: https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Critical Citrix NetScaler Flaw Draws CitrixBleed Comparisons as Exploitation Window Narrows | daily.dev og:description: A critical out-of-bounds memory read vulnerability (CVE-2026-3055, CVSS 9.3) has been disclosed in Citrix NetScaler ADC and NetScaler Gateway, affecting... og:url: https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl og:image: https://api.daily.dev/og/posts/iikwjWKHL.png og:image:alt: Critical Citrix NetScaler Flaw Draws CitrixBleed Comparisons as Exploitation Window Narrows og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Critical Citrix NetScaler Flaw Draws CitrixBleed Comparisons as Exploitation Window Narrows **[IT Security Guru](https://daily.dev/sources/itsecurityguru)** · 4 min read · 0 upvotes · 0 comments ## Summary A critical out-of-bounds memory read vulnerability (CVE-2026-3055, CVSS 9.3) has been disclosed in Citrix NetScaler ADC and NetScaler Gateway, affecting deployments configured as SAML Identity Providers. Security experts are drawing comparisons to the widely exploited CitrixBleed (2023) and CitrixBleed2 (2025) vulnerabilities, warning that exploitation could begin quickly once proof-of-concept code surfaces. Fixes are available in specific NetScaler versions. Beyond patching, security teams are advised to terminate active sessions post-patch, audit SAML IdP configurations using the string 'add authentication samlIdPProfile', review access paths for anomalous activity, and validate remediation from an external vantage point. Citrix-managed cloud services have already been updated; on-premises customers must apply patches themselves. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [CVE‑2026‑3055](https://daily.dev/posts/cve-2026-3055-agwr1jxtq) · Arctic Wolf · 0 upvotes · 0 comments - [CitrixBleed-ing Again? NetScaler Vulnerability Under Attack](https://daily.dev/posts/citrixbleed-ing-again-netscaler-vulnerability-under-attack-eta7e1qfc) · Dark Reading · 1 upvotes · 0 comments - [NetScaler Memory Overread Flaw Revives CitrixBleed Fears](https://daily.dev/posts/netscaler-memory-overread-flaw-revives-citrixbleed-fears-2ovgfwszg) · Latest Hacking News · 0 upvotes · 0 comments - [New CitrixBleed-like NetScaler flaw sees exploit attempts in the wild](https://daily.dev/posts/new-citrixbleed-like-netscaler-flaw-sees-exploit-attempts-in-the-wild-njyxcmvnn) · CSO Online · 0 upvotes · 0 comments --- Tags: [#vulnerability](https://daily.dev/tags/vulnerability) [View this post on daily.dev](https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Critical Citrix NetScaler Flaw Draws CitrixBleed Comparisons as Exploitation Window Narrows","url":"https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl"},"datePublished":"2026-03-27T19:43:41.793Z","dateModified":"2026-03-27T19:44:04.824Z","description":"A critical out-of-bounds memory read vulnerability (CVE-2026-3055, CVSS 9.3) has been disclosed in Citrix NetScaler ADC and NetScaler Gateway, affecting...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ccd05cfc2e999dad37fa3d77b630af03?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ccd05cfc2e999dad37fa3d77b630af03?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"IT Security Guru","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"IT Security Guru","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/ae9fe7d07c814192b35f86ad698fb374","url":"https://daily.dev/sources/itsecurityguru"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/critical-citrix-netscaler-flaw-draws-citrixbleed-comparisons-as-exploitation-window-narrows-iikwjwkhl","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"vulnerability","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"IT Security Guru","item":"https://daily.dev/sources/itsecurityguru"},{"@type":"ListItem","position":3,"name":"Critical Citrix NetScaler Flaw Draws CitrixBleed Comparisons as Exploitation Window Narrows"}]} ```