CVE-2026-56675Public exploitNetwork attack vector

Unauthenticated API access via loopback proxy trust

Published Jul 10, 2026 · Updated Jul 10, 2026

Authentication bypass in Decolua 9Router before 0.5.2 allows remote attackers to access /v1 APIs without an API key via a reverse proxy. The isLocalRequest logic in src/dashboardGuard.js trusts the loopback socket stamped by custom-server.js and ignores forwarding headers that identify the external client. Exploitation requires a same-host reverse proxy to forward public, non-Origin traffic over loopback; exposed endpoints disclose models and can consume configured provider credentials.

CVSS severity8.3
High
EPSS probability0.50%
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 Decolua 9Router before 0.5.2 allows remote attackers to access /v1 APIs without an API key via a reverse proxy. The isLocalRequest logic in src/dashboardGuard.js trusts the loopback socket stamped by custom-server.js and ignores forwarding headers that identify the external client. Exploitation requires a same-host reverse proxy to forward public, non-Origin traffic over loopback; exposed endpoints disclose models and can consume configured provider credentials.

The record

CVE
CVE-2026-56675
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Decolua
Product
9Router
Classifications
CWE-441, CWE-287, CWE-290, CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 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=< 0.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Decolua · 9Routerversion=< 0.5.2

Published CVSS scores

8.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-441Unintended Proxy or Intermediary ('Confused Deputy')
CWE-287Improper Authentication
CWE-290Authentication Bypass by Spoofing
CWE-306Missing Authentication for Critical Function
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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