CVE-2026-67614

Critical

Description

CyberPanel before 3.0.0 contains a hard-coded JWT secret vulnerability in the WebTerminal FastAPI SSH service that allows unauthenticated remote attackers to forge valid authentication tokens and obtain an interactive root shell via WebSocket on port 8888. Attackers can craft a forged JWT signed with the hardcoded secret value, specifying ssh_user=root, to authenticate to the terminal service without any valid credentials and receive a root shell.

SeverityCritical

CVSS9.8

Exploit probability—

ProductUsmannasir Cyberpanel

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-798Hard-coded credentials

How to fix

Update

usmannasir cyberpanel3.0.0 or later

Vendor advisories

cyberpanel.net/KnowledgeBase/home/change-logs/

Affected products

Product	Affected versions	Fixed in
usmannasir cyberpanel	v < 3.0.0	3.0.0

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