Versioned security assessment

Report ID: SA-8731599F

7/9/2026, 11:46:43 AM

remotion-render security assessment v2

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
remotion-render
Version
v2
Maintainer
101-skills
Source
github.com/101-skills/skills/tree/main/tools/video/remotion-render/
Coverage
1 Files scanned · 213 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

2 confirmed security findings require attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

Most Ruby or shell backtick alerts are false positives from Markdown code fences, table field names, and TSX template literals. The actionable risks are the skill dependency on external CLI commands and the required use of inference.sh, which sends code and props to a remote service. No prompt injection text was found in SKILL.md.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

1 Files scanned · 213 Lines analyzed

13 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Binding unavailable

  2. Artifact

    Identity incomplete

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 6 evidence locations

Filesystem access

May read or write local files.

Not recorded by this audit

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 31 evidence locations

Capability review items (11)
Medium
SKILL.md:7
Ruby/shell backtick execution
> **Install the belt CLI skill:** `npx skills add belt-sh/cli`
This line instructs users to run npx to install an external CLI skill. Installing executable tooling from a community source is a real command execution risk.
Medium
SKILL.md:19-30
Ruby/shell backtick execution
```bash
The fenced example includes belt login and belt app run commands that execute an external CLI. These commands authenticate and send rendering input to a remote service.
Medium
SKILL.md:72-80
Ruby/shell backtick execution
```bash
The Bash example runs belt app run with supplied Remotion code. This is legitimate for the skill, but it is still external command execution with remote processing.
Medium
SKILL.md:84-92
Ruby/shell backtick execution
```bash
The Bash example runs belt app run with supplied Remotion code. This is legitimate for the skill, but it is still external command execution with remote processing.
Medium
SKILL.md:96-98
Ruby/shell backtick execution
```bash
The Bash example starts a belt app run command for remote rendering. The command is expected behavior, but it executes an external CLI on generated input.
Medium
SKILL.md:108-117
Ruby/shell backtick execution
```bash
The Bash example runs belt app run and passes props with video input. This is a real external command path that sends user-provided data to the service.
Medium
SKILL.md:121-129
Ruby/shell backtick execution
```bash
The Bash example runs belt app run for a sequence animation. It is core functionality, but it still relies on external command execution and remote rendering.
Medium
SKILL.md:190-205
Ruby/shell backtick execution
```bash
The related skills block recommends npx skills add commands for multiple external skills. Following those commands can install and execute additional community tooling.
Low
SKILL.md:11
Hardcoded URL
Render videos from React/Remotion component code via [inference.sh](https://inference.sh) CLI.
The line declares that rendering is performed through inference.sh. This confirms the skill depends on a third-party network service for core functionality.
Low
SKILL.md:13
Hardcoded URL
![Remotion Render](https://cloud.inference.sh/app/files/u/4mg21r6ta37mpaz6ktzwtt8krr/01kg2c0egyg243m
The Markdown image is loaded from a remote inference.sh URL. This can trigger an external request when the documentation is rendered.
Low
SKILL.md:17
Hardcoded URL
> Requires inference.sh CLI (`belt`). [Install instructions](https://raw.githubusercontent.com/infer
The install instructions link points to mutable raw GitHub content for the required CLI. Users may rely on external installation guidance outside this skill package.

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (2)

RISK-001 Medium
SKILL.md:4
Broad belt CLI Permission
The skill allows Bash(belt *), which permits any belt subcommand rather than only the remotion-render app command.
The frontmatter explicitly grants a wildcard belt permission. This is broader than the documented render workflow and increases the command surface.
RISK-002 Medium
SKILL.md:23-24SKILL.md:37
Remote Execution of User-Provided TSX
The examples send a required TSX code string to infsh/remotion-render, so component code and props are processed by a remote renderer.
The documentation shows belt app run with a code payload and states that the code parameter is required. The behavior is intentional, but it creates data exposure and remote execution risk.

Remediation

Suggested fixes recorded by this audit. Applying them is the maintainer’s responsibility.

  1. FIX-001
    Medium
    Broad external CLI permission
    Limit allowed tools to the exact belt app run infsh/remotion-render workflow, or require explicit user approval for other belt commands.
  2. FIX-002
    Medium
    Remote rendering of user-provided code and props
    Warn users that TSX code and props are sent to inference.sh, and advise them not to include secrets or private assets.
  3. FIX-003
    Low
    External installation and asset links
    Pin installation guidance to a reviewed release and host marketplace images from a controlled or bundled asset path.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
Unavailable
Content hash
Unavailable
Tree hash
Unavailable
Skill path
Unavailable
Audit payload hash
Unavailable

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: not_attestable