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CVE-2026-34163

HIGH
7.7

Description

FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, FastGPT's MCP (Model Context Protocol) tools endpoints (/api/core/app/mcpTools/getTools and /api/core/app/mcpTools/runTool) accept a user-supplied URL parameter and make server-side HTTP requests to it without validating whether the URL points to an internal/private network address. Although the application has a dedicated isInternalAddress() function for SSRF protection (used in other endpoints like the HTTP workflow node), the MCP tools endpoints do not call this function. An authenticated attacker can use these endpoints to scan internal networks, access cloud metadata services, and interact with internal services such as MongoDB and Redis. This issue has been patched in version 4.14.9.5.

Details CVE

Score CVSS v3.17.7
SeveriteHIGH
Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Vecteur d'attaqueNETWORK
ComplexiteLOW
Privileges requisLOW
Interaction utilisateurNONE
Publie3/31/2026
Derniere modification4/1/2026
Sourcenvd
Observations honeypot0

Produits affectes

fastgpt:fastgpt

Faiblesses (CWE)

CWE-918

References

https://github.com/labring/FastGPT/commit/bc7eae2ed61481a5e322208829be291faec58c00(security-advisories@github.com)
https://github.com/labring/FastGPT/pull/6640(security-advisories@github.com)
https://github.com/labring/FastGPT/releases/tag/v4.14.9.5(security-advisories@github.com)
https://github.com/labring/FastGPT/security/advisories/GHSA-x9vj-5m4j-9mfv(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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