CVE-2026-4957CWE-200CWE-532

OpenBMB XAgent API Key function_handler.py FunctionHandler.handle_tool_call log file

Medium · published March 27, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
40.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
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
EPSS
0.00478 · 40.3th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-532 · Insertion of Sensitive Information into Log File
Published
2026-03-27T14:52Z
EPSS history
Timeline
  • 27 MAR 14:52Z
    OpenBMB XAgent API Key function_handler.py FunctionHandler.handle_tool_call log file
    cvelistv5