CVE-2025-49131

Name: CVE-2025-49131
Creator: NVD / NIST
Published: 2025-06-09T13:15:24.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2025-49131 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. FastGPT is an open-source project that provides a platform for building, deploying, and operating AI-driven workflows and conversational agents. The Sandbox container (fastgpt-sandbox) is a specialized, isolated environment used by FastGPT to safely execute user-submitted or dynamically generated code in isolation. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

FastGPT is an open-source project that provides a platform for building, deploying, and operating AI-driven workflows and conversational agents. The Sandbox container (fastgpt-sandbox) is a specialized, isolated environment used by FastGPT to safely execute user-submitted or dynamically generated code in isolation. The sandbox before version 4.9.11 has insufficient isolation and inadequate restrictions on code execution by allowing overly permissive syscalls, which allows attackers to escape the intended sandbox boundaries. Attackers could exploit this to read and overwrite arbitrary files and bypass Python module import restrictions. This is patched in version 4.9.11 by restricting the allowed system calls to a safer subset and additional descriptive error messaging.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.37%

28.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions
Fastgpt	Fastgpt	< 4.9.11

References

https://github.com/labring/FastGPT/commit/bb810a43a1c70683fab7f5fe993771e930a94426Patch
https://github.com/labring/FastGPT/pkgs/container/fastgpt-sandboxProduct
https://github.com/labring/FastGPT/pull/4958Issue Tracking
https://github.com/labring/FastGPT/releases/tag/v4.9.11Release Notes
https://github.com/labring/FastGPT/security/advisories/GHSA-f3pf-r3g7-g895Vendor Advisory

Timeline

Published: Jun 9, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-49131?

How severe is CVE-2025-49131?

CVE-2025-49131 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2025-49131?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-49131?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST