PT-2026-28684 · Openbb · Xagent

Eric-Z + 1 · Published 2026-03-27 · Updated 2026-03-27 · CVE-2026-4958

NVD

CVSS v3.1

6.5

Medium

Base vector

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

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 manipulation of the argument interaction id leads to authorization bypass. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is reported as difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Exploit

Fix

IDOR

Improper Authorization

Weakness Enumeration

CWE-639

CWE-285

Related Identifiers

CVE-2026-4958

Affected Products

Xagent

References · 5

• 🔥 https://gist.github.com/YLChen-007/dc46c2a710ecb9e855695f32da8bcab5 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4958 · Security Note
• https://vuldb.com/?id.353835 · Note
• https://vuldb.com/?submit.777618 · Note
• https://vuldb.com/?ctiid.353835 · Note