Security audit

Sherpa Onnx Tts Local

Security checks for vulnerabilities and agentic risk

Overview

This skill is a coherent local text-to-speech helper, but users should understand it downloads native runtime archives from GitHub during installation.

Install only if you are comfortable downloading native sherpa-onnx binaries from the listed GitHub release. Prefer running it as a normal user, choose a different voice model if needed, and avoid reusing an output filename you do not want overwritten.

A.I.G

Vulnerability Patterns

Insecure DependenciesIntroduces malicious components through unsafe dependency sources
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

Findings (1)

T08 · Insecure Dependencies

Warning

Location: SKILL.md:17
Finding: Downloaded Native Runtime Archives Lack Integrity Verification
Content: View full analysis
Remediation: View remediation

SkillSpector

Vulnerability Patterns

Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
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 (2)

Natural-Language Policy Violations

Medium

Category: Not specified by scanner
Confidence: 90% confidence
Finding: The manifest and installation instructions select the en_US Lessac voice model as the default, and the documentation does not present locale selection as an explicit user choice. Because SQP-3 applies to all file types, this natural-language and config-level preference for a specific locale can violate language/locale policy when no opt-in is provided.
Content: No source excerpt is available for this finding.

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 94% confidence
Finding: This is a markdown file, so SQP-2 applies to omissions in the skill description. The usage example shows creation of ./tts.wav, which affects user data on disk, but the document does not explicitly warn that running the command will write or overwrite a local file.
Content: No source excerpt is available for this finding.