Read the docs
TI-2026-42164 Aliases CVE-2026-58580GHSA-vc6m-gvqm-4jf2

LobeChat 2.2.9 - Broken Object-Level Authorization in Message Sub-Resource Writes

Priority MEDIUM 60CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

LobeChat through 2.2.9 server-database deployments are vulnerable to broken object-level authorization in MessageModel. The updateMessagePlugin, updatePluginState, updatePluginError, updateTTS and updateTranslate methods filter target rows by message id alone, omitting the userId scope that sibling methods apply, and findMessagePlugin reads back by id alone. Reachable via the corresponding tRPC message procedures, an authenticated user who knows another user's message identifier can overwrite that victim's plugin tool-call metadata, plugin state/error, text-to-speech and translation records on the same instance, and the tampered content is served back to the victim. Exploitation requires knowledge of the victim's non-enumerable message identifier.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0025 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
lobehublobehubup to 2.2.9—No fix listedCNA
  • lobehub Vendorlobehub Affected up to 2.2.9 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58580
  2. 2026-10-03 Alias added: GHSA-vc6m-gvqm-4jf2

References

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