CVE-2026-4957 MEDIUM

CVE-2026-4957: OpenBMB XAgent API Key function_handler.py FunctionHandler.handle_tool_call log file

Vendor Openbmb
Product XAgent
Weakness CWE-532 · Sensitive info in logs
Published March 27, 2026
Last update March 27, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 27, 2026 Record updated