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: 0.003 (20.1th 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

Weakness classification (CWE)

References

  • cna@vuldb.com (Permissions Required, technical-description, VDB Entry, vdb-entry)
  • cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
  • cna@vuldb.com (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.