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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, the webapi authentication layer trusts a client-controlled X-lobe-chat-auth header that is only XOR-obfuscated, not signed or otherwise authenticated. Because the XOR key is hardcoded in the repository, an attacker can forge arbitrary auth payloads and bypass authentication on protected webapi routes. Affected routes include /webapi/chat/[provider], /webapi/models/[provider], /webapi/models/[provider]/pull, and /webapi/create-image/comfyui. This vulnerability is fixed in 2.1.48.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-08 | Updated 2026-04-08 | Assigner GitHub_M




MEDIUM: 5.0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Problem types

CWE-287: Improper Authentication

CWE-290: Authentication Bypass by Spoofing

CWE-345: Insufficient Verification of Data Authenticity

Product status

< 2.1.48
affected

References

github.com/...obehub/security/advisories/GHSA-5mwj-v5jw-5c97 exploit

github.com/...obehub/security/advisories/GHSA-5mwj-v5jw-5c97

github.com/lobehub/lobehub/pull/13535

github.com/...ommit/3327b293d66c013f076cbc16cdbd05a61a3d0428

github.com/lobehub/lobehub/releases/tag/v2.1.48

cve.org (CVE-2026-39411)

nvd.nist.gov (CVE-2026-39411)

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