What’s Vulnerable › Vulnerabilities

CVE-2026-34162: FastGPT: Unauthenticated SSRF via httpTools Endpoint Leads to Internal API Key Theft

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-31 · updated 2026-07-24
• Weakness: CWE-306

Description

FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, the FastGPT HTTP tools testing endpoint (/api/core/app/httpTools/runTool) is exposed without any authentication. This endpoint acts as a full HTTP proxy — it accepts a user-supplied baseUrl, toolPath, HTTP method, custom headers, and body, then makes a server-side HTTP request and returns the complete response to the caller. This issue has been patched in version 4.14.9.5.

Affected products

• labring FastGPT: before 4.14.9.5 — fixed in 4.14.9.5

How to fix

Upgrade to a fixed version: labring FastGPT 4.14.9.5. Check the vendor advisory for mitigations.

References

• https://github.com/labring/FastGPT/commit/bc7eae2ed61481a5e322208829be291faec58c00
• https://github.com/labring/FastGPT/pull/6640
• https://github.com/labring/FastGPT/releases/tag/v4.14.9.5
• https://github.com/labring/FastGPT/security/advisories/GHSA-w36r-f268-pwrj
• https://github.com/labring/FastGPT/security/advisories/GHSA-w36r-f268-pwrj

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