CVE-2026-42302CWE-306

FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox

Critical · published May 8, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
70.1
In the wild
Unconfirmed
What it is

FastGPT is an AI Agent building platform. From version 4.14.10 to before version 4.14.13, the agent-sandbox component of FastGPT is vulnerable to unauthenticated Remote Code Execution (RCE). The startup script entrypoint.sh initializes code-server with the --auth none flag and binds the service to all network interfaces (0.0.0.0:8080). This configuration allows any user with network access to the port to bypass authentication and gain full control over the sandbox environment. This issue has been patched in version 4.14.13.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01295 · 70.1th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-05-08T22:05Z
EPSS history
Timeline
  • 08 MAY 22:05Z
    FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox
    cvelistv5