---
id: CVE-2026-58578
title: >-
  LobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub
  Skill Import
summary: >-
  LobeChat before version 2.2.10-canary.15 contains a regular expression denial
  of service (ReDoS) vulnerability that allows authenticated attackers to block
  the Node.js event loop by supplying a catastrophic-backtracking pattern in a
  GitH…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-1333
vendor: lobehub
product: lobehub
affected:
  - lobehub < 2.2.10-canary.15
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-06T19:00:14.398675Z'
exploitAvailable: true
published: '2026-07-02'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:07:10.559Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-58578'
references:
  - url: 'https://github.com/lobehub/lobehub/releases/tag/v2.2.10-canary.15'
    label: lobehub 2.2.10-canary.15 Release Notes
  - url: 'https://github.com/lobehub/lobehub/issues/16494'
    label: Researcher Disclosure
  - url: 'https://github.com/lobehub/lobehub/pull/16548'
    label: Fix PR
  - url: >-
      https://github.com/lobehub/lobehub/commit/349bbe326eb8635d6d9c6a96d12702681ae3a84a
    label: Fix Commit
  - url: >-
      https://www.vulncheck.com/advisories/lobechat-canary-15-regular-expression-denial-of-service-in-github-skill-import
tags:
  - cve.org
  - exploit-available
epss: 0.00548
epssPercentile: 0.46166
ingestedAt: '2026-11-08T14:51:22.290Z'
---

## Overview

LobeChat before version 2.2.10-canary.15 contains a regular expression denial of service (ReDoS) vulnerability that allows authenticated attackers to block the Node.js event loop by supplying a catastrophic-backtracking pattern in a GitHub repository URL path during skill import. Attackers can craft a malicious basePath value containing unescaped regex metacharacters such as catastrophic-backtracking patterns, which are injected into a dynamically constructed regular expression in the findSkillMd function and executed synchronously against archive entries, denying service to all concurrent users for tens of seconds per request.

## Affected

- `lobehub < 2.2.10-canary.15`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.