CVE-2026-49352Public exploitNetwork attack vector

Authentication bypass via hardcoded fallback JWT secret

Published Jul 15, 2026 · Updated Jul 15, 2026

Authentication bypass in Decolua 9Router 0.2.21 through 0.4.43 allows remote attackers to access the dashboard with a forged JWT cookie. Dashboard session code in login/route.js, middleware.js, and dashboardSession.js substitutes a public constant whenever JWT_SECRET is unset. An internet- or intranet-reachable deployment without JWT_SECRET accepts attacker-signed auth_token cookies, granting dashboard and API access to read keys, change settings, or shut down the service.

CVSS severity9.8
Critical
EPSS probability0.60%
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 0.2.21 through 0.4.43 allows remote attackers to access the dashboard with a forged JWT cookie. Dashboard session code in login/route.js, middleware.js, and dashboardSession.js substitutes a public constant whenever JWT_SECRET is unset. An internet- or intranet-reachable deployment without JWT_SECRET accepts attacker-signed auth_token cookies, granting dashboard and API access to read keys, change settings, or shut down the service.

The record

CVE
CVE-2026-49352
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Decolua
Product
9Router
Classifications
CWE-798, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=>= 0.2.21, < 0.4.44

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Decolua · 9Routerversion=>= 0.2.21, < 0.4.44

Published CVSS scores

9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-798Use of Hard-coded Credentials
T1550.001Use Alternate Authentication Material: Application Access Token

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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