# CVE-2026-42846: ClipBucket: Remote Play URL Command Injection

> Authenticated users can execute arbitrary commands via shell metacharacters in the Remote Play URL field of ClipBucket.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jun 2026
- **Updated:** 12 Jun 2026

## What is CVE-2026-42846?

CVE-2026-42846 is a critical command injection vulnerability in MacWarrior clipbucket-v5, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ClipBucket v5 is an open source video sharing platform. Prior to version 5.5.3 - #140, ClipBucket's Remote Play feature allows any authenticated user to add a video by importing an external URL as the source. Some shell commands are run with the URL as a parameter. The URL is concatenated directly into shell commands without escaping then executed, so any shell metacharacter in the URL is interpreted. This results in arbitrary command execution. This issue has been patched in version 5.5.3 - #140.

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

## Which versions are affected by CVE-2026-42846?


## How do I fix CVE-2026-42846?

No fix has been published for CVE-2026-42846 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-42846 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42846 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-42846 and fix it if it is affected.

What it is: CVE-2026-42846 is a critical command injection vulnerability in MacWarrior clipbucket-v5, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42846 exists.

Affected product: MacWarrior clipbucket-v5. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-42846/ (Markdown: https://insights.sbomify.com/CVE-2026-42846/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-42846
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-42846
- OSV: https://osv.dev/vulnerability/CVE-2026-42846

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-42846/
Summaries are generated and may contain mistakes; the official description above is the record.