high8.8
CVE-2026-31861
Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI, Codex, and Gemini-CLI.
Impact
Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI, Codex, and Gemini-CLI. Prior to 1.24.0, The /api/user/git-config endpoint constructs shell commands by interpolating user-supplied gitName and gitEmail values into command strings passed to child_process.exec(). The input is placed within double quotes and only " is escaped, but backticks (`), $() command substitution, and \ sequences are all interpreted within double-quoted strings in bash. This allows authenticated attackers to execute arbitrary OS commands via the git configuration endpoint. This vulnerability is fixed in 1.24.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @siteboon/claude-code-ui | <= 1.23.0 | 1.24.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cloudcli | Cloud Cli | before 1.24.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/siteboon/claudecodeui/commit/86c33c1c0cb34176725a38f46960213714fc3e04
- https://github.com/siteboon/claudecodeui/releases/tag/v1.24.0
- https://github.com/siteboon/claudecodeui/security/advisories/GHSA-7fv4-fmmc-86g2
- https://github.com/advisories/GHSA-7fv4-fmmc-86g2
- https://nvd.nist.gov/vuln/detail/CVE-2026-31861