by Kastro
Paper/Archive/CVE-2026-67614

CVE-2026-67614

usmannasir cyberpanel — CyberPanel < 3.0.0 Hard-coded JWT Secret Authentication Bypass via WebTerminal

EPSS 1.0%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 61.7.617 × 2012.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
cyberpanel< 3.0.03.0.0CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refcyberpanel.net/KnowledgeBase/home/change-logsrefgithub.com/usmannasir/cyberpanel/issues/1858writeupvulncheck.com/advisories/cyberpanel-hard-coded-jwt-secret-authentication-bypass-via-webterminal