Information disclosure in Openbmb Xagent
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…
Vulnerability class: Information Disclosure
EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Openbmb Xagent — versions 1.0.0
Weakness classification (CWE)
References
- VDB-353834 | OpenBMB XAgent API Key function_handler.py FunctionHandler.handle_tool_call log file (Permissions Required, technical-description, VDB Entry, vdb-entry)
- VDB-353834 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #777615 | OpenBMB XAgent v1.0.0 CWE-532 (Third Party Advisory, Issue Tracking, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-4957?
- CVE-2026-4957 is a low-severity vulnerability in Openbmb Xagent, classified under Information Disclosure. CVSS score: 2.7/10. Published 2026-03-27.
- How severe is CVE-2026-4957?
- Low severity. CVSS v3 base score is 2.7 out of 10.