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CVE-2026-44286— FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing Internal Address Validation

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 4.14.17之前版本存在代码问题漏洞，该漏洞源于lafModule工作流节点中fetchData函数使用axios获取用户控制的URL而未验证内部网络地址，可能导致未经身份验证的服务端请求伪造攻击。

AI Predicted 9.1 Difficulty: Easy EPSS 0.39% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
labring FastGPT < 4.14.17 affected
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I. Basic Information for CVE-2026-44286

Vulnerability Information
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Vulnerability Title
FastGPT: SSRF Vulnerability in Laf Workflow Node via Missing Internal Address Validation
Source: CVE Program / CVE List V5
Vulnerability Description
FastGPT is an AI Agent building platform. Prior to version 4.14.17, an unauthenticated Server-Side Request Forgery (SSRF) vulnerability allows attackers (or authenticated users with App editing privileges) to send arbitrary HTTP requests to internal/private network addresses. The fetchData function in the lafModule workflow node uses axios to fetch user-controlled URLs without validating them against the application's internal network blocklist guard (isInternalAddress), bypassing SSRF protections. This issue has been patched in version 4.14.17.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
FastGPT 代码问题漏洞
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 4.14.17之前版本存在代码问题漏洞，该漏洞源于lafModule工作流节点中fetchData函数使用axios获取用户控制的URL而未验证内部网络地址，可能导致未经身份验证的服务端请求伪造攻击。
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 < 4.14.17 -

II. Public POCs for CVE-2026-44286

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III. Intelligence Information for CVE-2026-44286

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Vendor Advisories for CVE-2026-44286 (1)

Vendor Pages for CVE-2026-44286 (1)

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

CVE-2026-42302 9.8 CRITICAL FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in a
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

IV. Related Vulnerabilities

Same product: FastGPT
Same vendor: labring
Same weakness: CWE-918

V. Comments for CVE-2026-44286

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