CVE-2026-31975
Critical · 9.8CVSS
9.8
EPSS
4.5%
Published
Mar 11, 2026
CISA due date
—
The record
Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI, Codex, and Gemini-CLI. Prior to 1.25.0, OS Command Injection via WebSocket Shell. Both projectPath and initialCommand in server/index.js are taken directly from the WebSocket message payload and interpolated into a bash command string without any sanitization, enabling arbitrary OS command execution. A secondary injection vector exists via unsanitized sessionId. This vulnerability is fixed in 1.25.0.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @siteboon/claude-code-ui | 0 | 1.25.0 |
Related vulnerabilities
- GHSA-gv8f-wpm2-m5wr @siteboon/claude-code-ui Vulnerable to Unauthenticated RCE via WebSocket Shell Injection Same vulnerability
- CVE-2026-31861 Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI… Also affects @siteboon/claude-code-ui
- GHSA-7fv4-fmmc-86g2 @siteboon/claude-code-ui is Vulnerable to Shell Command Injection in Git Routes Also affects @siteboon/claude-code-ui
- CVE-2026-96376 Improper Neutralization of Special Elements used in an OS Command ("OS Command… CWE-78
- CVE-2026-113732 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113776 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113726 virtualenv is a tool for creating isolated virtual python environments. CWE-78
- CVE-2026-113725 virtualenv is a tool for creating isolated virtual python environments. CWE-78