CVE-2026-4957: medium-severity vulnerability in OpenBMB XAgent
OpenBMB XAgent API Key function_handler.py FunctionHandler.handle_tool_call log file
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.1epss 0.3%
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.
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
Affected products
OpenBMB · XAgentpublic PoCs found — 1
cve_referencegist.github.com/YLChen-007/6279f3de0c2dff7732eaaf820843b562unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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