# CVE-2026-31862: Cloud CLI has Command Injection via Multiple Parameters

> Authenticated attackers can execute arbitrary OS commands via Git-related API endpoints in Cloud CLI due to unsafe string interpolation.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Mar 2026
- **Updated:** 12 Mar 2026
- **Also known as:** GHSA-f2fc-vc88-6w7q

## What is CVE-2026-31862?

CVE-2026-31862 is a critical command injection vulnerability in siteboon claudecodeui, published on 11 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

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, multiple Git-related API endpoints use execAsync() with string interpolation of user-controlled parameters (file, branch, message, commit), allowing authenticated attackers to execute arbitrary OS commands. This vulnerability is fixed in 1.24.0.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-31862?

2 open source packages ship an affected version, including @siteboon/claudecodeui. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@siteboon/claudecodeui` | npm | All versions | 1.24.0 |
| `@siteboon/claudecodeui` | npm | All versions | 1.24.0 |

Products: Cloudcli Cloud Cli.

## How do I fix CVE-2026-31862?

Upgrade @siteboon/claudecodeui to 1.24.0 or later.

## Is CVE-2026-31862 being exploited?

There is no known exploitation of CVE-2026-31862 in the wild and no public exploit code.

## Other vulnerabilities in siteboon claudecodeui

- [CVE-2026-31861](https://insights.sbomify.com/CVE-2026-31861/): Shell Command Injection in Git Routes [CloudCLI UI] (high 8.7)
- [CVE-2026-31975](https://insights.sbomify.com/CVE-2026-31975/): Cloud CLI WebSocket shell injection (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-31862 and fix it if it is affected.

What it is: CVE-2026-31862 is a critical command injection vulnerability in siteboon claudecodeui, published on 11 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-31862 in the wild and no public exploit code.

Affected packages and fixed versions:
- @siteboon/claudecodeui (npm): affected all versions; fixed in 1.24.0
- @siteboon/claudecodeui (npm): affected all versions; fixed in 1.24.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-31862/ (Markdown: https://insights.sbomify.com/CVE-2026-31862/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-31862
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31862
- OSV: https://osv.dev/vulnerability/CVE-2026-31862

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-31862/
Summaries are generated and may contain mistakes; the official description above is the record.