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CVE-2026-54157— LobeHub: Unauthenticated SSRF in `/webapi/proxy`

Quick assessment

Affected
lobehub lobehub
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LobeHub是LobeHub团队开源的一个全平台AI对话框架。 LobeHub 2.1.57之前版本存在服务端请求伪造漏洞，该漏洞源于Webapi代理端点经过验证，可能导致攻击者发送任意出站请求，泄露Vercel部署详情及注入Set-Cookie标头。

CVSS 9.0 · Critical EPSS 1.83% · P78

Public Exploits 1

Nuclei · 1 CVE-2026-54157.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
lobehub lobehub < 2.1.57 affected
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I. Basic Information for CVE-2026-54157

Vulnerability Information
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Vulnerability Title
LobeHub: Unauthenticated SSRF in `/webapi/proxy`
Source: CVE Program / CVE List V5
Vulnerability Description
LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you. Prior to 2.1.57, the /webapi/proxy endpoint on app.lobehub.com accepts a URL in the POST body and fetches it server-side without any authentication. An attacker can use this to make arbitrary outbound requests from LobeHub's infrastructure, leak Vercel deployment details, and inject cookies on the lobehub.com domain through reflected Set-Cookie headers. This vulnerability is fixed in 2.1.57.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
LobeHub 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LobeHub是LobeHub团队开源的一个全平台AI对话框架。 LobeHub 2.1.57之前版本存在服务端请求伪造漏洞，该漏洞源于Webapi代理端点经过验证，可能导致攻击者发送任意出站请求，泄露Vercel部署详情及注入Set-Cookie标头。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
lobehub lobehub < 2.1.57 -

II. Public POCs for CVE-2026-54157

# POC Description Source Link Shenlong Link
1 LobeHub LobeChat versions up to and including 2.1.56 are vulnerable to an unauthenticated server-side request forgery vulnerability in the /webapi/proxy endpoint. The endpoint accepts a URL in the POST request body and fetches it server-side without authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-54157.yaml POC Details
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default-local-qwen3.6 · 11373 chars
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III. Intelligence Information for CVE-2026-54157

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Vendor Advisories for CVE-2026-54157 (1)

IV. Related Vulnerabilities

Same product: lobehub
Same vendor: lobehub
Same weakness: CWE-918

V. Comments for CVE-2026-54157

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