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Security audit

Avalanche

Security checks for vulnerabilities and agentic risk

Overview

This is a simple Avalanche reference skill with no executable code, persistence, credential access, or hidden behavior.

Before using this for real AVAX or bridge activity, verify chain, address format, token contract, bridge interface, fees, and wallet support from official sources, and test with a small amount first because blockchain transactions can be irreversible.

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 (2)

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 17)May include surrounding context.

md
## C-Chain (Most Common)
- EVM compatible — MetaMask, same tools as Ethereum
- Uses AVAX for gas — need AVAX to transact
- Chain ID: 43114 — RPC: https://api.avax.network/ext/bc/C/rpc
- Block explorer: snowtrace.io — transaction verification
- Most tokens and DeFi here — Trader Joe, Aave, GMX

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill gives operational guidance for cross-chain transfers and bridging but does not clearly warn that sending assets on the wrong chain, to the wrong address format, or through the wrong export/import flow can result in irreversible loss or stranded funds. In a wallet/transaction-assistance skill, omissions around transfer finality materially increase the chance that a user follows incomplete instructions and loses assets.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.