CVE-2026-4957

A flaw has been found in OpenBMB XAgent 1.0.0. The impacted element is the function FunctionHandler.handle_tool_call of the file XAgent/function_handler.py of the component API Key Handler. This manipulation of the argument api_key causes sensitive information in log files. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-200
• CWE-532
• CWE-532

• https://gist.github.com/YLChen-007/6279f3de0c2dff7732eaaf820843b562Exploit, Third Party Advisory
• https://vuldb.com/?ctiid.353834Permissions Required, VDB Entry
• https://vuldb.com/?id.353834Permissions Required, VDB Entry
• https://vuldb.com/?submit.777615Issue Tracking, Third Party Advisory

Published

Mar 27, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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