CVE-2026-44287Public exploitNetwork attack vector

Sandbox command execution via dynamic import bypass

Published May 29, 2026 · Updated May 29, 2026

Code injection in Labring FastGPT before 4.15.0-beta1 allows remote authenticated users to execute commands in the sandbox container. The code-sandbox worker checks dynamic import syntax with a whitespace-only regex, so a block comment bypasses the test and leaves import outside the safeRequire module allowlist. Production exposure requires a sandbox token or flow-author access; standalone images without SANDBOX_TOKEN expose the endpoint unauthenticated, with execution limited to uid 100 inside the container.

CVSS severity6.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Labring FastGPT before 4.15.0-beta1 allows remote authenticated users to execute commands in the sandbox container. The code-sandbox worker checks dynamic import syntax with a whitespace-only regex, so a block comment bypasses the test and leaves import outside the safeRequire module allowlist. Production exposure requires a sandbox token or flow-author access; standalone images without SANDBOX_TOKEN expose the endpoint unauthenticated, with execution limited to uid 100 inside the container.

The record

CVE
CVE-2026-44287
Published
May 29, 2026
Updated
May 29, 2026
Vendor
Labring
Product
FastGPT
Classifications
CWE-184, CWE-94, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.15.0-beta1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Labring · FastGPTversion=< 4.15.0-beta1

Published CVSS scores

6.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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