What is CVE-2026-4958?

CVE-2026-4958 is a low-severity vulnerability in Openbmb Xagent, classified under Improper Authorization. CVSS score: 3.1/10. Published 2026-03-27.

How severe is CVE-2026-4958?

Low severity. CVSS v3 base score is 3.1 out of 10.

Auth bypass in Openbmb Xagent

CVE-2026-4958

A vulnerability has been found in OpenBMB XAgent 1.0.0. This affects the function ReplayServer.on_connect/ReplayServer.send_data of the file XAgentServer/application/websockets/replayer.py of the component WebSocket Endpoint. Such manipula…

EPSS: 0.004 (30.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Openbmb Xagent — versions 1.0.0

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-2026-4958?: CVE-2026-4958 is a low-severity vulnerability in Openbmb Xagent, classified under Improper Authorization. CVSS score: 3.1/10. Published 2026-03-27.
How severe is CVE-2026-4958?: Low severity. CVSS v3 base score is 3.1 out of 10.