CVE-2026-55641Public exploitNetwork attack vector

Unauthenticated proxy access and SSRF via Host spoofing

Published Jul 10, 2026 · Updated Jul 10, 2026

Authentication bypass in Decolua 9Router before 0.5.2 allows remote attackers to access the /v1 proxy and trigger server-side requests. The isLocalRequest guard in src/dashboardGuard.js treats a client-controlled Host header naming localhost as proof that the peer is local, skipping API-key authentication. On network-reachable default deployments, this permits upstream AI calls with stored provider credentials and lets /v1/search fetch and reflect data from attacker-selected internal or cloud-metadata hosts.

CVSS severity8.2
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Decolua 9Router before 0.5.2 allows remote attackers to access the /v1 proxy and trigger server-side requests. The isLocalRequest guard in src/dashboardGuard.js treats a client-controlled Host header naming localhost as proof that the peer is local, skipping API-key authentication. On network-reachable default deployments, this permits upstream AI calls with stored provider credentials and lets /v1/search fetch and reflect data from attacker-selected internal or cloud-metadata hosts.

The record

CVE
CVE-2026-55641
Published
Jul 10, 2026
Updated
Jul 10, 2026
Vendor
Decolua
Product
9Router
Classifications
CWE-290, CWE-918, CWE-1327, CWE-348, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

8.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
CWE-918Server-Side Request Forgery (SSRF)
CWE-1327Binding to an Unrestricted IP Address
CWE-348Use of Less Trusted Source
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo