CVE-2025-49131
The Sandbox container (fastgpt-sandbox) is a specialized, isolated environment used by FastGPT to safely execute user-submitted or dynamically generated code in isolation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.45% probability · 38th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- fastgpt/fastgpt
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.