CVE-2026-67614Known exploitationPublic exploitNetwork attack vectorHinoki check available

Unauthenticated root shell via hard-coded JWT secret

Published Aug 13, 2026 · Updated Aug 13, 2026

Authentication bypass in CyberPanel before 3.0.0 allows unauthenticated remote attackers to obtain a root shell through WebTerminal. The FastAPI SSH service on port 8888 verifies HS256 JWTs with a secret embedded in every affected installation and trusts the token's ssh_user claim. Forging a token with ssh_user set to root opens an interactive WebSocket shell with root privileges and no valid CyberPanel credentials.

CVSS severity9.3
Critical
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in CyberPanel before 3.0.0 allows unauthenticated remote attackers to obtain a root shell through WebTerminal. The FastAPI SSH service on port 8888 verifies HS256 JWTs with a secret embedded in every affected installation and trusts the token's ssh_user claim. Forging a token with ssh_user set to root opens an interactive WebSocket shell with root privileges and no valid CyberPanel credentials.

The record

CVE
CVE-2026-67614
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
CyberPanel
Product
CyberPanel
Classifications
CWE-798, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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 <3.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CyberPanel · CyberPanelversion=0 <3.0.0

Published CVSS scores

9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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.

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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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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