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TI-2026-42162 Aliases CVE-2026-58578GHSA-g4jq-25cx-3cw5

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

Priority MEDIUM 64CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1333.

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 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00548 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed lobehub (lobehub): 2.2.10-canary.15

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
lobehublobehubbefore 2.2.10-canary.152.2.10-canary.15Patch availableCNA
  • lobehub Vendorlobehub Affected before 2.2.10-canary.15 Fixed in 2.2.10-canary.15 Patch available CNA

Remediation

  • Fix · CNA lobehub (lobehub) Fixed in 2.2.10-canary.15

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58578
  2. 2026-10-03 Alias added: GHSA-g4jq-25cx-3cw5

References

Exploit 1

Patch 2

Other 1

  • TI-2026-39067 LobeHub: Unauthenticated SSRF in `/webapi/proxy` CVSS 3.1CRITICAL 9.0
  • TI-2026-83681 Path traversal in LobeHub Chat lets users write arbitrary files CVSS 4.0HIGH 8.7
  • TI-2024-31448 Lobe Chat has insufficient fix for GHSA-mxhq-xw3g-rphc (CVE-2024-32964) CVSS 3.1CRITICAL 9.0
  • TI-2024-21831 lobe-chat `/api/proxy` endpoint Server-Side Request Forgery vulnerability CVSS 3.1CRITICAL 9.0
  • TI-2026-58746 LobeChat 2.2.1 Webhook Signature Verification Bypass QQ Feishu CVSS 4.0MEDIUM 6.9
  • TI-2024-21832 ssrf vulnerability in lobe-chat CVSS 3.1HIGH 8.6
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences