CVE-2026-44284
mediumpriority · track · 0EPSS 0.002 · 14 %ileEUEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/labring/FastGPT/releasesPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-44284cnnvd
- https://github.com/labring/FastGPT/commit/c1c6b9520d976d25ed945b5bc4e0768149e6db69enisa_euvd
- https://github.com/labring/FastGPT/pull/6826enisa_euvd
- https://github.com/labring/FastGPT/releases/tag/v4.14.17enisa_euvd
- https://github.com/labring/FastGPT/security/advisories/GHSA-cxxj-99f7-f5wqenisa_euvd
- https://github.com/labring/FastGPT/commit/c1c6b9520d976d25ed945b5bc4e0768149e6db69nvd
- https://github.com/labring/FastGPT/pull/6826nvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan