CVE-2026-44284

MEDIUM EPSS 14.2%
Published May 8, 20261mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 3.1
Medium
Find Similar
Published May 8, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

FastGPT is an AI Agent building platform. Prior to version 4.14.17, FastGPT had an inconsistent SSRF protection gap in MCP tool URL handling. The direct MCP preview/run endpoints already rejected internal/private network URLs, but the MCP tool create/update endpoints could still save an internal MCP server URL. That stored URL could later be used by workflow execution without revalidating the destination. An authenticated user with permission to create or manage MCP toolsets could store an internal endpoint such as http://localhost:3000/mcp and later cause the FastGPT backend workflow runner to connect to that internal destination. This issue has been patched in version 4.14.17.

CVSS Details

Base Score
6.3
Exploitability
2.8
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
14.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-918 Server-Side Request Forgery (SSRF) Validation

References 4

  • github.com https://github.com/labring/FastGPT/commit/c1c6b9520d976d25ed945b5bc4e0768149e6db69
  • github.com https://github.com/labring/FastGPT/pull/6826
  • github.com https://github.com/labring/FastGPT/releases/tag/v4.14.17
  • github.com https://github.com/labring/FastGPT/security/advisories/GHSA-cxxj-99f7-f5wq

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.