lnget: like wget but for L402 on the web

• Outcome: Review
• Latest audit: Sep 10, 2026 · 5:09 PM UTC
• Version: 1.0.0

Overview

The skill is coherent for using lnget, but it directs users toward real Lightning payments with overbroad node credentials and an unpinned remote install path.

Install only with a pinned, reviewed lnget version, avoid using an LND admin macaroon, prefer a least-privilege Lightning credential or limited wallet with low balance, use --no-pay and conservative --max-cost/--max-fee limits first, and periodically clear cached tokens and revoke unused LNC sessions.

A.I.G

Vulnerability Patterns

• Remote Payload Retrieval and Execution: Fetches external code whose behavior can change after review
• Unauthorized Access and Privilege Escalation: Obtains permissions beyond the task's legitimate needs
• Skill Instruction Hijacking: Alters the agent's session goals or safety constraints when the skill loads
• Agent Memory Poisoning: Writes attacker-controlled rules into memory that affect later sessions
• Embedded Malicious Code: Ships malicious scripts inside the skill and executes them locally

Findings (2)

T03 · Remote Payload Retrieval and Execution

Error

• Location: scripts/install.sh:48

Finding

Mutable Remote Code Installation Through Unpinned Latest Release

Content

View full analysis

Remediation

View remediation

T05 · Unauthorized Access and Privilege Escalation

Error

• Location: SKILL.md:157

Finding

Use of LND Administrator Macaroon Violates Least Privilege

Content

View full analysis

Remediation

View remediation

SkillSpector

Vulnerability Patterns

• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep
• Rogue Agent: Self-Modification, Session Persistence
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Privilege Escalation: Excessive Permissions, Sudo/Root Execution, Credential Access

Findings (22)

Missing User Warnings

Medium

• Category: Not specified by scanner
• Confidence: 93% confidence

Finding

The skill explicitly describes automatic Lightning invoice payment and token reuse, but the introductory text does not prominently warn that using the tool can spend real funds and cache paid authorization tokens for future requests. In an agent context, that omission increases the risk of unintended micropayments and silent re-use of previously purchased access against remote services.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium

• Category: Not specified by scanner
• Confidence: 95% confidence

Finding

The Quick Start demonstrates fetching an L402-protected resource immediately after setup, which may cause automatic payment, but it provides no warning before the example. Because Quick Start snippets are the most likely to be copied verbatim, this materially increases the chance of accidental spending by users or autonomous agents.

Content

No source excerpt is available for this finding.

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 24)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 58)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 61)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 64)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 67)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 70)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 73)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 83)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 86)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 89)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 96)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 99)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 102)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 105)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 262)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 266)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 274)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

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 277)May include surrounding context.

lnget config init

3. Fetch an L402-protected resource

lnget --max-cost 1000 https://api.example.com/paid-data

text

## Installation

Session Persistence

Medium

• Category: Rogue Agent
• Confidence: 60% confidence

Finding

Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Content

Scanner excerpt · SKILL.md (reported line 186)May include surrounding context.

md

## Configuration File

Config lives at `~/.lnget/config.yaml`. Run `lnget config init` to create it.

**Note:** `lnget config init` may generate incorrect YAML key names (e.g.,
`tlscertpath` and `macaroonpath` instead of `tls_cert` and `macaroon`) due to

Static analysis

No suspicious patterns detected.