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TI-2026-86591 Aliases CVE-2026-123964GHSA-fgc9-94jf-v855

Infinite loop in OpenBMB Internet of Agents launch_goal via max_turns

Priority LOW 39CWE-404Published · 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 · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

OpenBMB Internet of Agents up to 9d78e88e47160eb42ee1ee8538c05e1c2c47877a is affected, and the product uses a rolling release model, so no specific affected release is listed. Manipulating the max_turns argument of the launch_goal function in communication_layer.py causes an infinite loop because the loop has no reachable exit condition (CWE-835). A remote attacker with low privileges can trigger it, and a public exploit is available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

A vulnerability was detected in OpenBMB Internet of Agents up to 9d78e88e47160eb42ee1ee8538c05e1c2c47877a. This affects the function launch_goal of the file im_client/communication/communication_layer.py of the component Collaboration Layer. Performing a manipulation of the argument max_turns results in infinite loop. The attack may be initiated remotely. The exploit is now public and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenBMBInternet of Agents9d78e88e47160eb42ee1ee8538c05e1c2c47877a—No fix listedCNA
  • Internet of Agents VendorOpenBMB Affected 9d78e88e47160eb42ee1ee8538c05e1c2c47877a Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:openbmb:internet_of_agents:*:*:*:*:*:*:*:*——OpenBMB
  • cpe:2.3:a:openbmb:internet_of_agents:*:*:*:*:*:*:*:* Versions — — ·OpenBMB

Remediation

The sources list no fixed version for Internet of Agents.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-123964
  2. 2026-11-07 Alias added: GHSA-fgc9-94jf-v855

References

Exploit 1

  • TI-2026-50949 XAgent Path Traversal Arbitrary File Read via /workspace/file CVSS 4.0HIGH 8.7
  • TI-2026-41884 OpenBMB ChatDev - Unauthenticated Path Traversal in Upload Handler Allows Arbitrary File Write and Delete CVSS 4.0HIGH 8.8
  • TI-2024-01867 OpenBMB XAgent Privileged Mode sandbox CVSS 3.1HIGH 8.8
  • TI-2026-85970 Code injection in OpenBMB Internet of Agents Code Executor Tool CVSS 4.0MEDIUM 6.9
  • TI-2026-04320 OpenBMB XAgent ShareServer WebSocket Endpoint share.py check_user missing authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-03418 OpenBMB XAgent workspace.py workspace path traversal CVSS 4.0MEDIUM 6.9
See all 14 →

Sources

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