CVE-2026-42045

The record

LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you. Prior to 2.1.48, when LobeChat processes custom tags in the Render process of src/features/Portal/Artifacts/Body/Renderer/index.tsx, if no type match is found, it will choose to call the default method, HTMLRenderer, for HTML rendering. If an attacker can induce the LLM to output content containing malicious tags, an XSS vulnerability can be created on the client side. Additionally, Lobechat's Electron main process exposes an IPC interface called runCommand, used to invoke system commands. This interface allows arbitrary command execution and does not filter the command parameter. Therefore, if an attacker can obtain a handle to window.parent.electronAPI via XSS and call the runCommand method of the IPC, the ipcMain process can execute arbitrary system commands with the current user's privileges. This vulnerability is fixed in 2.1.48.

Affected packages

Related vulnerabilities

• GHSA-xq4x-622m-q8fq LobeHub has a Cross-Site Scripting issue that escalates to Remote Code Execution Same vulnerability
• CVE-2026-54157 LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent… Also affects @lobehub/lobehub
• GHSA-xmwj-c75x-6346 LobeHub: Unauthenticated SSRF in `/webapi/proxy` Also affects @lobehub/lobehub
• CVE-2026-39411 LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent… Also affects @lobehub/lobehub
• GHSA-5mwj-v5jw-5c97 LobeHub: Unauthenticated authentication bypass on `webapi` routes via forgeable… Also affects @lobehub/lobehub
• CVE-2026-96379 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")… CWE-79
• CVE-2026-96382 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")… CWE-79
• CVE-2026-96368 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")… CWE-79