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Description

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.

PUBLISHED Reserved 2026-04-23 | Published 2026-05-12 | Updated 2026-05-12 | Assigner GitHub_M




MEDIUM: 6.2CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 2.1.48
affected

References

github.com/...obehub/security/advisories/GHSA-xq4x-622m-q8fq exploit

github.com/...obehub/security/advisories/GHSA-xq4x-622m-q8fq

cve.org (CVE-2026-42045)

nvd.nist.gov (CVE-2026-42045)

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