CVE-2026-4958: Authorization Bypass in OpenBMB XAgent
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.
AI Analysis
Technical Summary
This vulnerability in OpenBMB XAgent 1.0.0 allows an attacker to bypass authorization controls by manipulating the interaction_id parameter in the ReplayServer's WebSocket endpoint functions on_connect and send_data. The flaw resides in the component XAgentServer/application/websockets/replayer.py. Exploitation requires remote access and is rated as highly complex and difficult. Although the exploit has been publicly disclosed, there are no known exploits in the wild and the vendor has not issued a fix or advisory.
Potential Impact
Successful exploitation results in an authorization bypass, potentially allowing an attacker with limited privileges to perform actions or access data beyond their authorization scope. The impact is considered low severity due to the high complexity of exploitation and limited privileges required. There is no indication of privilege escalation, data integrity loss, or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch or workaround is available, users should monitor for updates from the vendor. Due to the complexity of exploitation and low severity, immediate emergency response is not indicated but caution is advised.
CVE-2026-4958: Authorization Bypass in OpenBMB XAgent
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in OpenBMB XAgent 1.0.0 allows an attacker to bypass authorization controls by manipulating the interaction_id parameter in the ReplayServer's WebSocket endpoint functions on_connect and send_data. The flaw resides in the component XAgentServer/application/websockets/replayer.py. Exploitation requires remote access and is rated as highly complex and difficult. Although the exploit has been publicly disclosed, there are no known exploits in the wild and the vendor has not issued a fix or advisory.
Potential Impact
Successful exploitation results in an authorization bypass, potentially allowing an attacker with limited privileges to perform actions or access data beyond their authorization scope. The impact is considered low severity due to the high complexity of exploitation and limited privileges required. There is no indication of privilege escalation, data integrity loss, or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch or workaround is available, users should monitor for updates from the vendor. Due to the complexity of exploitation and low severity, immediate emergency response is not indicated but caution is advised.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-03-27T08:07:54.929Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69c6a9723c064ed76fbf9385
Added to database: 3/27/2026, 3:59:46 PM
Last enriched: 4/4/2026, 11:07:13 AM
Last updated: 5/11/2026, 2:45:38 AM
Views: 69
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