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Security audit

varg-character-keynote

Security checks for vulnerabilities and agentic risk

Overview

The skill creates short videos through varg’s disclosed cloud service and requires your approval before spending credits.

Requires a varg connection or API key. Prompts and any supplied reference images go to its cloud service. Share suitable content, protect your key, and review the estimated credits before approving each render.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (4)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
homepage: https://varg.ai
compatibility: >-
  Needs the varg MCP connection (https://mcp.varg.ai/mcp, render_video tool) or a VARG_API_KEY
  with curl for POST https://api.varg.ai/v2/render. No local dependencies.
allowed-tools: Bash(curl:*) Bash(jq:*) Read Write Edit
---

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
homepage: https://varg.ai
compatibility: >-
  Needs the varg MCP connection (https://mcp.varg.ai/mcp, render_video tool) or a VARG_API_KEY
  with curl for POST https://api.varg.ai/v2/render. No local dependencies.
allowed-tools: Bash(curl:*) Bash(jq:*) Read Write Edit
---

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 84)May include surrounding context.

-H "Authorization: Bearer $VARG_API_KEY" -H "Content-Type: application/json"
-d "{"code": $(jq -Rs . < keynote.tsx)}"

-> {"id":"job_xxx",...}; poll until completed, the video is at output.outputs[0].url

curl -s https://api.varg.ai/v2/jobs/JOB_ID -H "Authorization: Bearer $VARG_API_KEY"

text

## Rules

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

  • API: save it as keynote.tsx, then
bash
curl -s -X POST https://api.varg.ai/v2/render \
  -H "Authorization: Bearer $VARG_API_KEY" -H "Content-Type: application/json" \
  -d "{\"code\": $(jq -Rs . < keynote.tsx)}"
# -> {"id":"job_xxx",...}; poll until completed, the video is at output.outputs[0].url

Static analysis

No suspicious patterns detected.