CVE-2026-42302— FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
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
II. Public POCs for CVE-2026-42302
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- Release v4.14.13 · labring/FastGPT · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-42302
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
- CVE-2026-44286
FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing - CVE-2026-44284
FastGPT: Stored MCP tool URL SSRF in FastGPT workflow execut - CVE-2026-42345
FastGPT: Cloud metadata endpoint SSRF protection bypass via - CVE-2026-42344
FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress al - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo
Same vendor: labring
- CVE-2026-44286
FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing - CVE-2026-44284
FastGPT: Stored MCP tool URL SSRF in FastGPT workflow execut - CVE-2026-42345
FastGPT: Cloud metadata endpoint SSRF protection bypass via - CVE-2026-42344
FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress al - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo
Same weakness: CWE-306
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WordPress Download From Files 1.48 Arbitrary File Upload - CVE-2021-47936
OpenCATS 0.9.4 Remote Code Execution via Resume Upload - CVE-2021-47933
WordPress MStore API 2.0.6 Arbitrary File Upload - CVE-2026-8185
UGREEN CM933 Administrative missing authentication - CVE-2026-42176
Scoold: Persistent Admin Takeover by Overwriting the admins
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