Vulnerability in Usmannasir Cyberpanel
CVE-2026-67614
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.010 · change: +0.004
Affected products
- Usmannasir Cyberpanel — versions 0
Weakness classification (CWE)
References
- cyberpanel.net/KnowledgeBase/home/change-logs/ (release-notes)
- github.com/usmannasir/cyberpanel/issues/1858 (issue-tracking)
- www.vulncheck.com/advisories/cyberpanel-hard-coded-jwt-secret-authentication-by… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-67614?
- CVE-2026-67614 is a critical-severity vulnerability in Usmannasir Cyberpanel, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-08-13.
- How severe is CVE-2026-67614?
- Critical severity. CVSS v3 base score is 9.8 out of 10.