CVE-2026-31975

HIGH8.7

Cloud CLI WebSocket shell injection

Published Mar 11, 2026

Modified 4 days ago

Details

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.

References

WEB

https://github.com/siteboon/claudecodeui/commit/12e7f074d9563b3264caf9cec6e1b701c301af26

WEB

https://github.com/siteboon/claudecodeui/releases/tag/v1.25.0

DETECTION

https://github.com/siteboon/claudecodeui/security/advisories/GHSA-gv8f-wpm2-m5wr

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-31975

CVSS Analysis

CVSS v4.0

8.7