CVE-2026-31975

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security-advisories@github.com

Published

2026-03-11

Last modified

2026-03-12

Weaknesses

CWE-78

Affected products

• Cloud Cli (Cloudcli)
• Claudecodeui (Siteboon)

References

• https://github.com/siteboon/claudecodeui/commit/12e7f074d9563b3264caf9cec6e1b701c301af26
• https://github.com/siteboon/claudecodeui/releases/tag/v1.25.0
• https://github.com/siteboon/claudecodeui/security/advisories/GHSA-gv8f-wpm2-m5wr