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-2026-39423 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-2026-39423 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-2026-39423

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-2026-39423

Summary (CVE-2026-39423) MaxKB (enterprise open‑source) × affected version: 2.7.1 and earlier. A vulnerability in the Markdown rendering engine enables an Eval Injection that lets any user in the AI chat interface execute arbitrary JavaScript in other users’ browsers, including administrators, le...

CVE-2026-39422 MaxKB has Stored XSS via ChatHeadersMiddleware

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability through the application name or icon fields when creating an application. When a victim visits the public chat interface /ui/chat/accesstoken, the...

CVE-2026-39422

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability through the application name or icon fields when creating an application. When a victim visits the public chat interface /ui/chat/accesstoken, the...

EUVD-2026-22182

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability through the application name or icon fields when creating an application. When a victim visits the public chat interface /ui/chat/accesstoken, the...

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-2026-39421 MaxKB: Sandbox escape via ctypes and unhooked SYS_pkey_mprotect

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LDPRELOAD-based...

CVE-2026-39421 MaxKB: Sandbox escape via ctypes and unhooked SYS_pkey_mprotect

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LDPRELOAD-based...

CVE-2026-39421

CVE-2026-39421 affects MaxKB (versions 2.7.1 and earlier). The sandbox escape occurs in ToolExecutor via Python ctypes calling raw syscalls to bypass LD_PRELOAD sandbox.so, enabling arbitrary code execution through direct kernel syscalls and potential full container/network compromise. The librar...

CVE-2026-39417

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...

CVE-2026-39420 MaxKB: Sandbox escape via LD_PRELOAD bypass

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LDPRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop...

EUVD-2026-22178

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LDPRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop...

CVE-2026-39420 MaxKB: Sandbox escape via LD_PRELOAD bypass

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LDPRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop...

CVE-2026-39420

CVE-2026-39420 (MaxKB) affects MaxKB

CVE-2026-39418 MaxKB: SSRF via sandbox network hook bypass

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-2026-39418 MaxKB: SSRF via sandbox network hook bypass

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-2026-39418

CVE-2026-39418 MaxKB is affected in versions ≤ 2.7.1 where the sandbox’s network protection can be bypassed. An authenticated user with tool-editing permissions can reach internal services blocked by the sandbox by using socket.sendto() with the MSG_FASTOPEN flag. MaxKB’s sandbox relies on LD_PRE...