Security audit

nansen-defi-positions

Security checks for vulnerabilities and agentic risk

Overview

ClawScan rates this skill benign with high confidence: scanners found no reported malicious behavior, while flagging that wallet addresses are sent to Nansen without a clear privacy notice.

Before installing, consider whether you are comfortable sending the wallet address you look up to Nansen. The scan covered the single reported component completely; the benign verdict does not mean the skill is risk-free.

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

Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
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

Findings (1)

Wallet lookup instructions omit disclosure that the wallet address is sent to Nansen.

Medium

Category: Output Handling
Confidence: 90% confidence
Finding: The workflow instructs the agent to query DeFi positions and balances using the supplied wallet address, transmitting that address to Nansen. Although the authentication section mentions API calls, the skill does not warn that these lookups disclose the queried wallet address to a third-party service.
Content: No source excerpt is available for this finding.