User Impersonation Affecting @lobehub/lobehub package, versions *
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-LOBEHUBLOBEHUB-16419535
- published5 May 2026
- disclosed8 Apr 2026
- credit13ernkastel
Introduced: 8 Apr 2026
CVE-2026-39411 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
@lobehub/lobehub is a LobeHub - an open-source,comprehensive AI Agent framework that supports speech synthesis, multimodal, and extensible Function Call plugin system. Supports one-click free deployment of your private ChatGPT/LLM web application.
Affected versions of this package are vulnerable to User Impersonation via the X-lobe-chat-auth header on webapi routes. An attacker can gain unauthorized access to protected API endpoints and perform actions as an authenticated user by crafting a forged header using a hardcoded XOR key to bypass authentication checks. This allows access to sensitive operations, including impersonating users and utilizing backend model provider credentials.