---
title: "CVE-2026-54157: LobeHub: Unauthenticated SSRF in `/webapi/proxy`"
url: https://erroneo.us/security/cve/CVE-2026-54157/
description: "CVE-2026-54157 (@lobehub/lobehub (npm)): LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you.…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-06-23
date_modified: 2026-07-20
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-54157"
kev: false
cvss: 9
epss: 0.0183
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.8% , percentile 79: FIRST’s model estimates a 1.8% chance of exploitation activity in the next 30 days, higher than 79% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.
- Only applies if your dependency tree includes @lobehub/lobehub (npm) <= 2.1.56, fixed in 2.1.57 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- npm `@lobehub/lobehub` <= 2.1.56 → fixed: 2.1.57

## Affected products (CVE record)

- lobehub lobehub: < 2.1.57

## Severity

- GitHub_M CVSS 3.1: 9 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H`
- GitHub CVSS 3.1: 9.0 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.83% probability of exploitation activity in the next 30 days; percentile 79.

## Sources

- [GitHub Advisory GHSA-xmwj-c75x-6346](https://github.com/advisories/GHSA-xmwj-c75x-6346)
- [CVE.org record CVE-2026-54157](https://www.cve.org/CVERecord?id=CVE-2026-54157)
- [NVD entry CVE-2026-54157](https://nvd.nist.gov/vuln/detail/CVE-2026-54157)
- [github.com](https://github.com/lobehub/lobehub/security/advisories/GHSA-xmwj-c75x-6346)

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Source page: https://erroneo.us/security/cve/CVE-2026-54157/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt