CVE-2026-61643

FastGPT is a knowledge-based AI application platform. From 4.14.17 until 4.15.0-beta5, an authenticated FastGPT user can save a workflow node that points to another user's private HTTP toolset by using a crafted saved tool id such as http-<victim_toolset_app_id>/<tool_name>. The normal toolset routes deny access, but the workflow save and runtime path did not apply the same authorization check to the referenced toolset, allowing /api/v2/chat/completions to resolve the saved reference and execute the victim-owned HTTP tool. This issue is fixed in version 4.15.0-beta5.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/labring/FastGPT/releases/tag/v4.15.0-beta5
https://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch
https://github.com/labring/FastGPT/security/advisories/GHSA-93r3-wqq3-c5ch

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-15 18:16

Updated : 2026-07-20 16:17

NVD link : CVE-2026-61643

Mitre link : CVE-2026-61643

CVE.ORG link : CVE-2026-61643

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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