CVE-2026-56681Public exploitNetwork attack vectorHinoki check available

Unauthenticated LLM API access via spoofed client IP

Published Sep 22, 2026 · Updated Sep 22, 2026

Authentication bypass in Decolua 9Router before 0.5.6 allows remote attackers to access the public LLM API without an API key. The isLocalRequest function in src/dashboardGuard.js trusts a client-supplied X-9r-Real-Ip loopback value, causing canAccessPublicLlmApi to skip API-key validation. Exploitation requires a network-reachable deployment that sends requests directly to Next.js without the sanitizing custom-server.js wrapper; access exposes configured models and permits use of the owner's provider connections.

CVSS severity7.3
High
EPSS probability0.97%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in Decolua 9Router before 0.5.6 allows remote attackers to access the public LLM API without an API key. The isLocalRequest function in src/dashboardGuard.js trusts a client-supplied X-9r-Real-Ip loopback value, causing canAccessPublicLlmApi to skip API-key validation. Exploitation requires a network-reachable deployment that sends requests directly to Next.js without the sanitizing custom-server.js wrapper; access exposes configured models and permits use of the owner's provider connections.

The record

CVE
CVE-2026-56681
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Decolua
Product
9Router
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 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=< 0.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Decolua · 9Routerversion=< 0.5.6

Published CVSS scores

7.3DecoluaCVSS:3.1/AV:N/AC:L/PR:N/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application

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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