Versioned security assessment

Report ID: SA-5F98993B

7/5/2026, 1:27:59 AM

seedance-v2 security assessment v3

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
seedance-v2
Version
v3
Maintainer
agentspace-so
Source
github.com/agentspace-so/runcomfy-agent-skills/tree/main/seedance-v2/
Coverage
1 Files scanned · 182 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

1 confirmed security finding requires 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 high-severity static findings are false positives from Markdown code spans, placeholder URLs, and documented token storage. The skill does require executing the RunComfy CLI and sending prompts or media references to a third-party API. No evidence of prompt injection or credential exfiltration was found.

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 · 182 Lines analyzed

12 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 8 evidence locations

Filesystem access

May read or write local files.

Observed in 5 evidence locations

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 37 evidence locations

Capability review items (11)
Medium
SKILL.md:10
Ruby/shell backtick execution
Calls `runcomfy run bytedance/seedance-v2/pro` through the local
The description states that the skill calls the local RunComfy CLI. This is intended external command execution, although the Markdown backticks are not Ruby execution.
Medium
SKILL.md:24-26
Ruby/shell backtick execution
```bash
The fenced block includes an npx command that installs a community skill globally. That is real external command execution with package and network trust implications.
Medium
SKILL.md:46-47
Ruby/shell backtick execution
1. **RunComfy CLI** — `npm i -g @runcomfy/cli`
The line instructs users to install the RunComfy CLI with npm. Installing and running a global CLI is a real external command risk even if expected for the skill.
Medium
SKILL.md:47-48
Ruby/shell backtick execution
2. **RunComfy account** — `runcomfy login` opens a browser device-code flow.
The line instructs users to run runcomfy login, which starts an authentication flow and writes local credentials. This is expected but security-sensitive CLI execution.
Medium
SKILL.md:48
Ruby/shell backtick execution
3. **CI / containers** — set `RUNCOMFY_TOKEN=<token>` instead of `runcomfy login`.
The line discusses the RUNCOMFY_TOKEN credential path and repeats the runcomfy login command. It is legitimate setup guidance, but it still involves command and credential handling.
Medium
SKILL.md:70-74
Ruby/shell backtick execution
```bash
The fenced block contains a runcomfy run command that sends user prompt input to the CLI and writes output files. This is real external command execution.
Medium
SKILL.md:78-87
Ruby/shell backtick execution
```bash
The fenced block contains a runcomfy run command with user-facing prompt content and a reference media URL. This is real external command execution and third-party processing.
Medium
SKILL.md:91-100
Ruby/shell backtick execution
```bash
The fenced block contains a runcomfy run command with image, video, and audio reference URLs. This is real external command execution with external media processing.
Medium
SKILL.md:173
Ruby/shell backtick execution
The skill invokes `runcomfy run bytedance/seedance-v2/pro` with a JSON body matching the schema. The
The line states that the skill invokes runcomfy run and that the CLI posts to the RunComfy Model API. This confirms intended external command and network behavior.
Medium
SKILL.md:177
Ruby/shell backtick execution
- **Token storage**: `runcomfy login` writes the API token to `~/.config/runcomfy/token.json` with m
The line references running runcomfy login and describes token storage. The command is legitimate, but authentication commands and local credentials are security-sensitive.
Low
SKILL.md:173
Hardcoded URL
The skill invokes `runcomfy run bytedance/seedance-v2/pro` with a JSON body matching the schema. The
The line names the RunComfy API endpoint and says the CLI posts the request and downloads generated files. That is real outbound network behavior, not just a documentation link.

Risk findings

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

Confirmed security concerns (1)

RISK-001 Medium
SKILL.md:173SKILL.md:179
Third-Party Prompt and Media Disclosure
The skill says the CLI posts requests to model-api.runcomfy.net and that RunComfy servers fetch third-party media URLs. Running it can disclose user prompts and reference media to RunComfy.
The cited lines explicitly describe the outbound API request and server-side fetching of user-provided media URLs. This is expected behavior, but it is a clear privacy boundary.

Remediation

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

  1. FIX-001
    Medium
    External CLI execution and global installation are required.
    Ask for explicit user confirmation before installing or running the RunComfy CLI, and prefer pinned or verified CLI versions.
  2. FIX-002
    Medium
    Prompts and media references are sent to RunComfy.
    Warn users before upload and advise them not to submit confidential prompts, private media, or restricted customer assets.
  3. FIX-003
    Medium
    Authentication setup stores a local API token.
    State that the skill must never read, print, or transmit the token file and should rely on the CLI or RUNCOMFY_TOKEN only.
  4. FIX-004
    Low
    Placeholder URLs trigger path traversal scanner noise.
    Replace https://... placeholders with example.com media URLs to reduce false positive static findings.

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