CVE-2026-54157Public exploitNetwork attack vector

Unauthenticated SSRF via missing proxy authentication

Published Jun 23, 2026 · Updated Jun 23, 2026

SSRF in LobeHub before 2.1.57 allows remote attackers to make server-side outbound requests through the unauthenticated proxy endpoint. In src/app/(backend)/webapi/proxy/route.ts, POST reads a body-supplied URL and passes it to ssrfSafeFetch() without checkAuth(), while middleware skips /webapi/. No account is required; responses reflect upstream bodies and headers, exposing deployment details and enabling lobehub.com cookie injection.

CVSS severity9.0
Critical
EPSS probability1.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in LobeHub before 2.1.57 allows remote attackers to make server-side outbound requests through the unauthenticated proxy endpoint. In src/app/(backend)/webapi/proxy/route.ts, POST reads a body-supplied URL and passes it to ssrfSafeFetch() without checkAuth(), while middleware skips /webapi/. No account is required; responses reflect upstream bodies and headers, exposing deployment details and enabling lobehub.com cookie injection.

The record

CVE
CVE-2026-54157
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
LobeHub
Product
LobeHub
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.1.57

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LobeHub · LobeHubversion=< 2.1.57

Published CVSS scores

9.0GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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