ruby: Potential HTTP request smuggling in WEBrick

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy which also has a po...

CVE-2026-39426

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability where the frontend's MdRenderer.vue component parses custom tags from LLM responses or Application Prologue configurations, bypassing standard Markdown sanitizatio...

CVE-2026-39426

MaxKB (enterprise open-source AI assistant) contains a Stored XSS in versions 2.7.1 and earlier. The vulnerability arises in MdRenderer.vue, which parses custom tags from LLM responses or Prologue configurations and bypasses Markdown sanitization. Unsanitized HTML is passed to IframeRender.vue a...

CVE-2026-39426 MaxKB: Stored XSS via Unsanitized iframe_render Parsing

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability where the frontend's MdRenderer.vue component parses custom tags from LLM responses or Application Prologue configurations, bypassing standard Markdown sanitizatio...

CVE-2026-39426 MaxKB: Stored XSS via Unsanitized iframe_render Parsing

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability where the frontend's MdRenderer.vue component parses custom tags from LLM responses or Application Prologue configurations, bypassing standard Markdown sanitizatio...

CVE-2026-39423

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including...

CVE-2026-39418

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, sandbox network protection can be bypassed by using socket.sendto with the MSGFASTOPEN flag. This allows authenticated user with tool-editing permissions to reach internal services that are explicitly blocked by the...

CVE-2026-39419 MaxKB: Sandbox Result Validation Bypass via Tool Output Spoofing

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an authenticated user can bypass sandbox result validation and spoof tool execution results by exploiting Python frame introspection to read the wrapper's UUID from its bytecode constants, then writing a forged resu...

CVE-2026-39424

MaxKB (1Panel-dev) has a CSV-injection vulnerability in the chat export feature for versions 2.7.1 and earlier. When exporting chat history to .xlsx via /admin/api/workspace/{workspace_id}/application/{application_id}/chat/export, strings beginning with formula characters are written without sani...

CVE-2026-39424 MaxKB has CSV Injection in its Application Chat Export Functionality

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, the chat export feature is vulnerable to Improper Neutralization of Formula Elements in a CSV File. When an administrator exports the application chat history to an Excel file .xlsx via the...

EUVD-2026-22184

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including...

CVE-2026-39423 Stored XSS via Eval Injection in EchartsRander Component

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including...

CVE-2026-39422

MaxKB vulnerability CVE-2026-39422 is a Stored XSS in versions 2.7.1 and earlier, triggered via the application name or icon fields when creating an application. When users visit the public chat interface (/ui/chat/{access_token}), ChatHeadersMiddleware retrieves application data and directly ins...

CVE-2026-39417 MaxKB: RCE via MCP stdio command injection in workflow engine

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an incomplete fix for CVE-2025-53928, where a Remote Code Execution vulnerability still exists in the MCP node of the workflow engine. MaxKB only restricts the referencing code path loading MCP config from the...

MaxKB 操作系统命令注入漏洞

MaxKB is an open-source question-answering system based on large language models and RAG, developed by 1Panel-dev. Versions of MaxKB prior to 2.7.1 contained a vulnerability related to operating system command injection. This vulnerability stemmed from issues with the MCP node, a workflow engine,...

MaxKB 代码问题漏洞

MaxKB is an open-source question-answering system based on large language models and RAG, developed by 1Panel-dev. Versions of MaxKB prior to 2.7.1 contained code vulnerabilities. These vulnerabilities stemmed from a flaw in sandbox network protection, which could be bypassed, allowing...

PT-2026-32584

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability that allows authenticated users to inject arbitrary HTML and JavaScript into the Application prologue Opening Remarks field by wrapping malicious payloads in tags...

MaxKB 安全漏洞

MaxKB is an open-source question-answering system based on large language models and RAG, developed by 1Panel-dev. Versions of MaxKB prior to 2.7.1 contained a security vulnerability. This vulnerability stemmed from the possibility of bypassing sandbox result validation, which could allow...

MaxKB 安全漏洞

MaxKB is an open-source question-answering system based on large language models and RAG, developed by 1Panel-dev. Versions of MaxKB prior to 2.7.1 contained a security vulnerability. This vulnerability stemmed from the chat export feature improperly handling formula elements in CSV files, which...

PT-2026-32585

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability where the frontend's MdRenderer.vue component parses custom tags from LLM responses or Application Prologue configurations, bypassing standard Markdown sanitizatio...