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CVE-2026-3954— OpenBMB XAgent workspace.py workspace path traversal

Quick assessment

Affected
OpenBMB XAgent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

XAgent是OpenBMB开源的一个开源的实验性大型语言模型（LLM）驱动的自治代理。 XAgent 1.0.0版本存在路径遍历漏洞，该漏洞源于对文件XAgentServer/application/routers/workspace.py函数workspace参数file_name的错误操作，可能导致路径遍历。

CVSS 6.5 · Medium EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3954

Vulnerability Information
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Vulnerability Title
OpenBMB XAgent workspace.py workspace path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in OpenBMB XAgent 1.0.0. Affected by this vulnerability is the function workspace of the file XAgentServer/application/routers/workspace.py. This manipulation of the argument file_name causes path traversal. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
XAgent 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XAgent是OpenBMB开源的一个开源的实验性大型语言模型（LLM）驱动的自治代理。 XAgent 1.0.0版本存在路径遍历漏洞，该漏洞源于对文件XAgentServer/application/routers/workspace.py函数workspace参数file_name的错误操作，可能导致路径遍历。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenBMB XAgent 1.0.0 cpe:2.3:a:openbmb:xagent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-3954

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III. Intelligence Information for CVE-2026-3954

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Vendor Advisories for CVE-2026-3954 (3)

Other References for CVE-2026-3954 (2)

IV. Related Vulnerabilities

Same product: XAgent
Same vendor: OpenBMB
Same weakness: CWE-22

V. Comments for CVE-2026-3954

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