High severity · published Apr 8, 2026
CVE-2026-39411
LobeHub has an unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` header
7.1
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LO
lobehub · lobehub
< 2.1.48 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39411
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39411
Patch
https://github.com/lobehub/lobehub/commit/3327b293d66c013f076cbc16cdbd05a61a3d0428
Issue Tracking
https://github.com/lobehub/lobehub/pull/13535
Product
https://github.com/lobehub/lobehub/releases/tag/v2.1.48
Vendor Advisory
https://github.com/lobehub/lobehub/security/advisories/GHSA-5mwj-v5jw-5c97
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