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CVE-2026-42302— FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox

Quick assessment

Affected
labring FastGPT
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.

FastGPT是labring开源的一款基于大语言模型的开源知识库问答系统。 FastGPT 4.14.10版本至4.14.13之前版本存在访问控制错误漏洞，该漏洞源于agent-sandbox组件启动脚本使用--auth none标志并将服务绑定到所有网络接口，可能导致未授权用户绕过身份验证并完全控制沙箱环境。

CVSS 9.8 · Critical EPSS 1.29% · P69

Affected Version Matrix 1

VendorProduct Version RangeStatus
labring FastGPT >= 4.14.10, < 4.14.13 affected
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I. Basic Information for CVE-2026-42302

Vulnerability Information
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Vulnerability Title
FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox
Source: CVE Program / CVE List V5
Vulnerability Description
FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution (RCE). The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to all network interfaces (0.0.0.0:8080). This configuration allows any user with network access to the port to bypass authentication and gain full control over the sandbox environment. This issue has been patched in version 4.14.13.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
FastGPT 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FastGPT是labring开源的一款基于大语言模型的开源知识库问答系统。 FastGPT 4.14.10版本至4.14.13之前版本存在访问控制错误漏洞，该漏洞源于agent-sandbox组件启动脚本使用--auth none标志并将服务绑定到所有网络接口，可能导致未授权用户绕过身份验证并完全控制沙箱环境。
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
labring FastGPT >= 4.14.10, < 4.14.13 -

II. Public POCs for CVE-2026-42302

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III. Intelligence Information for CVE-2026-42302

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Patches & Fixes for CVE-2026-42302 (2)

Vendor Advisories for CVE-2026-42302 (1)

Vendor Pages for CVE-2026-42302 (1)

Same Patch Batch · labring · 2026-05-08 · 6 CVEs total

CVE-2026-42345 7.7 HIGH FastGPT: Cloud metadata endpoint SSRF protection bypass via port specification, IPv6 mappi
CVE-2026-42344 6.3 MEDIUM FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress allows SSRF on all protected end
CVE-2026-44284 6.3 MEDIUM FastGPT: Stored MCP tool URL SSRF in FastGPT workflow execution
CVE-2026-42343 FastGPT: Uncontrolled Resource Consumption leading to Sandbox Exhaustion
CVE-2026-44286 FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing Internal Address Validation

IV. Related Vulnerabilities

Same product: FastGPT
Same vendor: labring
Same weakness: CWE-306

V. Comments for CVE-2026-42302

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