CVE-2026-26003Network attack vector

Unauthenticated plugin-service disruption via legacy forwarding route

Published Feb 10, 2026 · Updated Feb 10, 2026

Authentication bypass in Labring FastGPT 4.14.0 through 4.14.5 allows remote attackers to disrupt the plugin service through an API route. The FastGPT/api/plugin/[...pluginRequestPath].ts handler forwards requests to the plugin system without authenticating the caller. No account or user interaction is required; documented consequences are a plugin-service crash and loss of plugin installation status without key disclosure.

CVSS severity6.9
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

Authentication bypass in Labring FastGPT 4.14.0 through 4.14.5 allows remote attackers to disrupt the plugin service through an API route. The FastGPT/api/plugin/[...pluginRequestPath].ts handler forwards requests to the plugin system without authenticating the caller. No account or user interaction is required; documented consequences are a plugin-service crash and loss of plugin installation status without key disclosure.

The record

CVE
CVE-2026-26003
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
Labring
Product
FastGPT
Classifications
CWE-601, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 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=>= 4.14.0, < 4.14.5-fix

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Labring · FastGPTversion=>= 4.14.0, < 4.14.5-fix

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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