Is this vulnerability remotely exploitable over the internet?

Yes, if the FastGPT instance exposes `/api/core/app/httpTools/runTool` to the internet without network-layer protection, any remote attacker who can reach the service can exploit it without authenticating.

What level of access does an attacker need to abuse this issue?

Only network access to the vulnerable endpoint is required. No valid account, API key, or session is needed when authentication is not enforced on the HTTP tools testing endpoint.

What is the safest general fix pattern for this kind of problem?

Treat any endpoint that can perform outbound HTTP requests as a privileged operation. Enforce authentication and fine-grained authorization, restrict the set of allowed target hosts and paths, and, where possible, remove or disable generic proxy-like capabilities from public-facing APIs entirely.

Severity:

CRITICAL RISK

(10.0)

Unauthenticated Server-Side Request Forgery (CWE-918) in FastGPT HTTP Tools Testing Endpoint

CVE-2026-34162

Published:

Mar 31, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-306;CWE-918

Impact:

Network Pivoting and Internal Service Access via SSRF

Severity:

CRITICAL RISK

(10.0)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-306;CWE-918

Impact:

Network Pivoting and Internal Service Access via SSRF

Severity:

CRITICAL RISK

(10.0)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Unauthenticated Server-Side Request Forgery (CWE-918) in FastGPT HTTP Tools Testing Endpoint

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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