CVE-2026-4957 Details
Description
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.
A vulnerability exists in OpenBMB XAgent version 1.0.0 within the API Key Handler component. The issue arises in the FunctionHandler.handle_tool_call method, where third-party API keys are logged and returned without proper masking. This flaw allows sensitive information to be exposed through log files and WebSocket communications. The vulnerability can be exploited remotely by authenticated users.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/YLChen-007/6279f3de0c2dff7732eaaf820843b562 | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/?ctiid.353834 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.353834 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?submit.777615 | [email protected] | Issue TrackingThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-532 | Insertion of Sensitive Information into Log File | [email protected] |
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
| CWE-532 | Insertion of Sensitive Information into Log File | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openbmb xagent | 1.0.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Initial Analysis | [email protected] |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 27, 2026 | New CVE Received | [email protected] |