PT-2026-28685 · Openbb · Xagent

Eric-Z + 1 · CVE-2026-4959 · Published 2026-03-27 · Updated 2026-03-27

NVD

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

A vulnerability was found in OpenBMB XAgent 1.0.0. This impacts the function check user of the file XAgentServer/application/websockets/share.py of the component ShareServer WebSocket Endpoint. Performing a manipulation of the argument interaction id results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Exploit

Fix

Improper Authentication

Missing Authentication

Weakness Enumeration

CWE-287

CWE-306

Related Identifiers

CVE-2026-4959

Affected Products

Xagent

References · 5

• 🔥 https://gist.github.com/YLChen-007/531ec6b169f4b9ecbc8c2f0b2cd7c5ee · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4959 · Security Note
• https://vuldb.com/?submit.777622 · Note
• https://vuldb.com/?ctiid.353836 · Note
• https://vuldb.com/?id.353836 · Note