CVE-2026-42343

FastGPT is an AI Agent building platform. In versions 4.14.13 and prior, the code-sandbox component suffers from insufficient resource isolation and uncontrolled resource consumption. The service relies solely on an application-level soft limit (a 500ms polling interval) for memory management and lacks strict OS-level constraints such as cgroups or kernel-level namespaces. This architectural weakness allows attackers to easily bypass memory checks via time-window attacks, or exhaust the entire JavaScript worker pool via concurrent CPU-intensive requests, resulting in a complete Denial of Service (DoS) for legitimate users. At time of publication, there are no publicly available patches.

CVSS

No CVSS.

References

Link	Resource
https://github.com/labring/FastGPT/security/advisories/GHSA-qv7v-r94x-6x3x
https://github.com/labring/FastGPT/security/advisories/GHSA-qv7v-r94x-6x3x

Configurations

No configuration.

History

12 May 2026, 03:16

Type	Values Removed	Values Added
References	~~() https://github.com/labring/FastGPT/security/advisories/GHSA-qv7v-r94x-6x3x -~~	() https://github.com/labring/FastGPT/security/advisories/GHSA-qv7v-r94x-6x3x -

08 May 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-08 23:16

Updated : 2026-05-12 16:41

NVD link : CVE-2026-42343

Mitre link : CVE-2026-42343

CVE.ORG link : CVE-2026-42343

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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