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Security audit

Pub Whisper

Security checks across malware telemetry and agentic risk

Overview

The skill appears to be presented as local Whisper transcription but actually documents a broad remote API gateway that can upload sensitive content and send messages.

Review carefully before installing. Treat this as a remote multi-service API skill, not a local transcription tool: audio, text, images, searches, email contents, and phone numbers may leave your environment. Install only if you intend to use that remote gateway, have a valid API key, and will require explicit user approval before any messaging or sensitive-content upload.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (36)

Description-Behavior Mismatch

High
Confidence
99% confidence
Finding
The skill is marketed as a local Whisper CLI transcription tool, but the content actually documents a broad remote API gateway for many unrelated services. This mismatch can mislead users and orchestration systems into granting trust, data access, or execution expectations that are inappropriate for the skill's real behavior.

Context-Inappropriate Capability

High
Confidence
98% confidence
Finding
Email and SMS/OTP features are materially unrelated to a stated local speech-to-text purpose and introduce outbound messaging and verification capabilities that could be abused for spam, phishing support, or account workflow manipulation. Their presence broadens the attack surface far beyond user expectations for a transcription skill.

Context-Inappropriate Capability

High
Confidence
98% confidence
Finding
The skill bundles chat, image, video, TTS, music, web search, scraping, and document processing under a label implying local Whisper transcription. This excessive scope creates hidden capability expansion, increasing the likelihood of unintended data disclosure and misuse of remote services under false assumptions of locality and limited function.

Intent-Code Divergence

High
Confidence
100% confidence
Finding
The documentation explicitly claims 'Local speech-to-text with the Whisper CLI (no API key)' while requiring SKILLBOSS_API_KEY and directing all usage to a remote HTTPS endpoint. This is a deceptive trust and privacy issue because users may provide audio or other sensitive data believing it stays local when it is actually transmitted to a third-party service.

Description-Behavior Mismatch

Medium
Confidence
90% confidence
Finding
The documentation claims broad multimodal capabilities and references remote third-party model providers despite the skill being presented as a Whisper-focused local speech-to-text tool. This mismatch can mislead users and downstream agents about the actual trust boundary, data flows, and permissions involved, increasing the risk of unintended external data disclosure or unsafe invocation of capabilities the user did not expect.

Description-Behavior Mismatch

Medium
Confidence
95% confidence
Finding
The file documents capabilities for document parsing, email, SMS, embeddings, and presentation generation that are unrelated to the stated primary purpose of a local Whisper speech-to-text skill. This kind of capability expansion increases attack surface and can mislead users or reviewers about what the skill can actually do, enabling unexpected data handling or outbound actions beyond the advertised scope.

Context-Inappropriate Capability

Medium
Confidence
97% confidence
Finding
Outbound email and SMS functions are especially risky in a skill presented as local speech-to-text because they enable external communication and possible data exfiltration or abuse that users would not reasonably expect. In this context, the mismatch makes the capability set more dangerous, since a seemingly local/offline tool could trigger network-based messaging actions with sensitive content or be repurposed for spam, phishing, or unauthorized notifications.

Missing User Warnings

Medium
Confidence
93% confidence
Finding
The skill repeatedly instructs sending prompts, audio, documents, search queries, email payloads, and phone numbers to external services without clear privacy, consent, or data handling warnings. In the context of a misleadingly 'local' skill, the absence of disclosure is more dangerous because users are less likely to expect third-party transmission.

External Transmission

Medium
Category
Data Exfiltration
Content
## List Models

```bash
curl -s https://api.heybossai.com/v1/models \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY"
```
Confidence
88% confidence
Finding
curl -s https://api.heybossai.com/v1/models \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" ``` Filter by type: ```bash curl -s "https://api.heybossai.com/v1/models?types=image" \ -H "Authorizat

External Transmission

Medium
Category
Data Exfiltration
Content
## Image Generation

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "mm/img", "inputs": {"prompt": "A

External Transmission

Medium
Category
Data Exfiltration
Content
## Video Generation

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "mm/t2v", "inputs": {"prompt": "A

External Transmission

Medium
Category
Data Exfiltration
Content
## Text-to-Speech

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d

External Transmission

Medium
Category
Data Exfiltration
Content
## Speech-to-Text

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
96% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "openai/whisper-1", "inputs": {"au

External Transmission

Medium
Category
Data Exfiltration
Content
## Background Removal

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
86% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "replicate/remove-bg", "inputs": {

External Transmission

Medium
Category
Data Exfiltration
Content
## Web Search

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
88% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d

External Transmission

Medium
Category
Data Exfiltration
Content
## Email

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
95% confidence
Finding
curl -s -X POST https://api.heybossai.com/v1/run \ -H "Authorization: Bearer $SKILLBOSS_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "email/send", "inputs": {"to": "us

External Transmission

Medium
Category
Data Exfiltration
Content
One API key, 50+ models across providers (Bedrock, OpenAI, Vertex, ElevenLabs, Replicate, Minimax, and more). Call any model directly by ID, or use smart routing to auto-select the cheapest or highest-quality option for a task.

**Base URL:** `https://api.heybossai.com/v1`
**Auth:** `-H "Authorization: Bearer $SKILLBOSS_API_KEY"`

## List Models
Confidence
84% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
## List Models

```bash
curl -s https://api.heybossai.com/v1/models \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY"
```
Confidence
88% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
Filter by type:

```bash
curl -s "https://api.heybossai.com/v1/models?types=image" \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY"
```
Confidence
88% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
Get full docs for specific models:

```bash
curl -s "https://api.heybossai.com/v1/models?ids=mm/img,bedrock/claude-4-5-sonnet" \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY"
```
Confidence
88% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
## Chat

```bash
curl -s -X POST https://api.heybossai.com/v1/chat/completions \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
89% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
## Image Generation

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
Save to file:

```bash
URL=$(curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "mm/img", "inputs": {"prompt": "A sunset over mountains"}}' \
Confidence
91% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
## Video Generation

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
https://api.heybossai.com/

External Transmission

Medium
Category
Data Exfiltration
Content
Image-to-video:

```bash
curl -s -X POST https://api.heybossai.com/v1/run \
  -H "Authorization: Bearer $SKILLBOSS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
Confidence
90% confidence
Finding
https://api.heybossai.com/

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.