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.

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
OpenBMB XAgent affected
Version Status Constraints
1.0.0 affected —

No data.

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Project Subscriptions

Vendors Products
Openbmb Subscribe
Xagent Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/YLChen-007/dc46c2a710ecb9e855695f32da8bcab5 cve-icon cve-icon
https://vuldb.com/?ctiid.353835 cve-icon cve-icon
https://vuldb.com/?id.353835 cve-icon cve-icon
https://vuldb.com/?submit.777618 cve-icon cve-icon
History

Fri, 27 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenBMB XAgent WebSocket Endpoint replayer.py ReplayServer.send_data authorization
First Time appeared Openbmb
Openbmb xagent
Weaknesses CWE-285
CWE-639
CPEs cpe:2.3:a:openbmb:xagent:*:*:*:*:*:*:*:*
Vendors & Products Openbmb
Openbmb xagent
References
Metrics cvssV2_0

{'score': 2.1, 'vector': 'AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.1, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-27T15:31:27.729Z

Reserved: 2026-03-27T08:07:54.929Z

Link: CVE-2026-4958

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-27T16:16:24.943

Modified: 2026-03-27T16:16:24.943

Link: CVE-2026-4958

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses