TI-2026-30424 Aliases CVE-2026-42045 GHSA-xq4x-622m-q8fq

LobeHub: Cross-Site Scripting(XSS) escalate to Remote Code Execution(RCE)

MEDIUM 61CWE-79Published 2026-05-12 · Updated 2026-05-12

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: High
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: High · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79 and CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00266 18th percentileScored 2026-11-07

Fix Fixed lobehub (lobehub): 2.1.48

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
lobehub	lobehub	before 2.1.48	2.1.48	Patch available	CNA
—	@lobehub/lobehub (npm)	up to 2.1.26	—	No fix listed	GHSA-xq4x-622m-q8fq

lobehub Vendorlobehub Affected before 2.1.48 Fixed in 2.1.48 Patch available CNA
@lobehub/lobehub (npm) Vendor— Affected up to 2.1.26 Fixed in — No fix listed GHSA-xq4x-622m-q8fq

Remediation

Fix · CNA lobehub (lobehub) Fixed in 2.1.48

Timeline

2026-10-02 Threatist record created from CVE-2026-42045
2026-10-03 Alias added: GHSA-xq4x-622m-q8fq

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-42045

Other 2

TI-2026-39067 LobeHub: Unauthenticated SSRF in `/webapi/proxy` CVSS 3.1CRITICAL 9.0
TI-2026-83681 Path traversal in LobeHub Chat lets users write arbitrary files CVSS 4.0HIGH 8.7
TI-2024-31448 Lobe Chat has insufficient fix for GHSA-mxhq-xw3g-rphc (CVE-2024-32964) CVSS 3.1CRITICAL 9.0
TI-2024-21831 lobe-chat `/api/proxy` endpoint Server-Side Request Forgery vulnerability CVSS 3.1CRITICAL 9.0
TI-2026-58746 LobeChat 2.2.1 Webhook Signature Verification Bypass QQ Feishu CVSS 4.0MEDIUM 6.9
TI-2024-21832 ssrf vulnerability in lobe-chat CVSS 3.1HIGH 8.6

See all 21 →

Sources

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