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CVE-2026-58578— LobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import

Quick assessment

Affected
lobehub lobehub
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 2.2.10-canary.15之前版本存在资源管理错误漏洞，该漏洞源于在技能导入期间对GitHub仓库URL路径中的正则表达式元字符处理不当，导致findSkillMd函数中动态构造的正则表达式存在正则表达式拒绝服务（ReDoS）问题，认证攻击者可通过提供灾难性回溯模式利用该漏洞，导致Node.js事件循环阻塞，拒绝服务持续数十秒。

CVSS 6.5 · Medium EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
lobehub lobehub < 2.2.10-canary.15 affected
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I. Basic Information for CVE-2026-58578

Vulnerability Information
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Vulnerability Title
LobeChat < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
LobeHub 资源管理错误漏洞
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 2.2.10-canary.15之前版本存在资源管理错误漏洞，该漏洞源于在技能导入期间对GitHub仓库URL路径中的正则表达式元字符处理不当，导致findSkillMd函数中动态构造的正则表达式存在正则表达式拒绝服务（ReDoS）问题，认证攻击者可通过提供灾难性回溯模式利用该漏洞，导致Node.js事件循环阻塞，拒绝服务持续数十秒。
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 0 ~ 2.2.10-canary.15 -

II. Public POCs for CVE-2026-58578

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III. Intelligence Information for CVE-2026-58578

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Patches & Fixes for CVE-2026-58578 (2)

Vendor Advisories for CVE-2026-58578 (2)

Same Patch Batch · lobehub · 2026-07-02 · 5 CVEs total

CVE-2026-59095 7.7 HIGH LobeChat < 2.2.10-canary.18 - SSRF via importFromUrl and fetchImageFromUrl
CVE-2026-59098 6.5 MEDIUM LobeChat 2.2.9 - Cross-User Document Disclosure via Unscoped RAG Semantic Search
CVE-2026-58580 5.9 MEDIUM LobeChat 2.2.9 - Broken Object-Level Authorization in Message Sub-Resource Writes
CVE-2026-59100 5.0 MEDIUM LobeChat 2.2.9 - Broken Object Level Authorization via Chat-Group Agent Operations

IV. Related Vulnerabilities

Same product: lobehub
Same vendor: lobehub
Same weakness: CWE-1333

V. Comments for CVE-2026-58578

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