CVE-2026-4958

A vulnerability has been found in OpenBMB XAgent 1.0.0. This affects the function ReplayServer.on_connect/ReplayServer.send_data of the file XAgentServer/application/websockets/replayer.py of the component WebSocket Endpoint. Such manipulation of the argument interaction_id leads to authorization bypass. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
Link Resource
https://gist.github.com/YLChen-007/dc46c2a710ecb9e855695f32da8bcab5 Exploit Third Party Advisory
https://vuldb.com/?ctiid.353835 Permissions Required VDB Entry
https://vuldb.com/?id.353835 Permissions Required VDB Entry
https://vuldb.com/?submit.777618 Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:openbmb:xagent:1.0.0:*:*:*:*:*:*:*

History

29 Apr 2026, 17:07

Type Values Removed Values Added
CPE cpe:2.3:a:openbmb:xagent:1.0.0:*:*:*:*:*:*:*
References () https://gist.github.com/YLChen-007/dc46c2a710ecb9e855695f32da8bcab5 - () https://gist.github.com/YLChen-007/dc46c2a710ecb9e855695f32da8bcab5 - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.353835 - () https://vuldb.com/?ctiid.353835 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.353835 - () https://vuldb.com/?id.353835 - Permissions Required, VDB Entry
References () https://vuldb.com/?submit.777618 - () https://vuldb.com/?submit.777618 - Issue Tracking, Third Party Advisory
First Time Openbmb
Openbmb xagent

27 Mar 2026, 16:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-27 16:16

Updated : 2026-04-29 17:07


NVD link : CVE-2026-4958

Mitre link : CVE-2026-4958

CVE.ORG link : CVE-2026-4958


JSON object : View

Products Affected

openbmb

  • xagent
CWE
CWE-285

Improper Authorization

CWE-639

Authorization Bypass Through User-Controlled Key