Versioned security assessment

Report ID: SA-D3651E63

7/8/2026, 4:45:49 AM

higgsfield-soul-id security assessment v4

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
higgsfield-soul-id
Version
v4
Maintainer
higgsfield-ai
Source
github.com/higgsfield-ai/skills/tree/main/higgsfield-soul-id/
Coverage
3 Files scanned · 147 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Critical

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 static findings are Markdown false positives from inline code, model names, or product-specific Soul reference commands. The remote installer command is a confirmed critical risk, and the workflow also handles biometric face photos that require explicit user consent.

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

3 Files scanned · 147 Lines analyzed

6 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 1 evidence location

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 24 evidence locations

Capability review items (4)
Critical
SKILL.md:28-30
Ruby/shell backtick execution
```bash
The fenced Bash block includes a curl command piped directly into sh. This executes remote installer content without checksum or signature verification.
High
SKILL.md:29
Hardcoded URL
curl -fsSL https://raw.githubusercontent.com/higgsfield-ai/cli/main/install.sh | sh
The hardcoded GitHub raw URL is used to download an installer during skill execution. Network-based installation is sensitive because the fetched script can change outside the skill package.
Medium
SKILL.md:50-53
Ruby/shell backtick execution
```bash
The command block runs Higgsfield CLI training commands with local image paths or upload IDs. This is expected behavior, but it can upload sensitive face photos to an external service.
Medium
SKILL.md:53-55
Ruby/shell backtick execution
```
The surrounding workflow states that the CLI auto-uploads paths and captures a returned reference id. This confirms external command activity with privacy-sensitive media, even though it is core functionality.

Risk findings

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

Confirmed security concerns (2)

RISK-001 Critical
SKILL.md:29
Pipe to shell pattern
curl -fsSL https://raw.githubusercontent.com/higgsfield-ai/cli/main/install.sh | sh
The command pipes downloaded content directly to sh. This is a well-known high-risk install pattern that can execute unreviewed remote code.
RISK-002 High
SKILL.md:43-55references/photo-guide.md:5-29
Sensitive Biometric Data Handling
The workflow collects face photos and auto-uploads local image paths to train a reusable identity model. This requires explicit consent and clear data handling disclosure.
The skill explicitly asks for 5 to 20 face photos and states that the CLI auto-uploads paths. The photo guide confirms the required biometric input quality and quantity.

Remediation

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

  1. FIX-001
    Critical
    Remote installer is piped directly to the shell.
    Replace curl to sh with a package manager install, or download the installer, verify checksum or signature, and ask for confirmation before execution.
  2. FIX-002
    High
    The skill can install, authenticate, upload photos, and create remote identity models.
    Require explicit confirmation before each network operation and show the account, destination service, and files that will be uploaded.
  3. FIX-003
    High
    Soul training uses sensitive face photos and creates reusable identity references.
    Add consent, data retention, deletion, and authorized-subject guidance before collecting or uploading any face images.
  4. FIX-004
    Medium
    Command examples depend on user-supplied names, paths, and prompts.
    Quote user-supplied values, reject shell metacharacters where possible, and avoid constructing commands through raw shell interpolation.

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