ClawHub
Back to skill

Security audit

cargo-hosting

Security checks for vulnerabilities and agentic risk

Overview

This is a coherent Cargo hosting skill whose deployment, secret, and removal commands are expected for publishing apps and workers, but users should run state-changing steps deliberately.

Install only if you intend to use Cargo hosting. Confirm the active workspace before writes, review any deploy or promote before making it live, treat .env.local and CARGO_API_TOKEN values as sensitive local material, prefer worker-scoped secrets over workspace-wide tokens when possible, and verify app or worker UUIDs before remove because removals cascade to deployments.

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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (12)

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 86)May include surrounding context.

md
cargo-ai hosting app create --name "Territories" --slug territories
# → { "app": { "uuid": "<app-uuid>", "slug": "territories", "url": "https://territories-1a2b3c4d.app.getcargo.run", ... } }

# 3. (optional) Develop locally — write the .env.local the app needs, then run Vite
cargo-ai hosting app env <app-uuid> > ./territories/.env.local
cd ./territories && npm install && npm run dev

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · references/examples/apps.md (reported line 16)May include surrounding context.

md
cargo-ai hosting app create --name "Territories" --slug territories
# → { "app": { "uuid": "<app-uuid>", "slug": "territories", "url": "https://territories-1a2b3c4d.app.getcargo.run", ... } }

# 3. (optional) Develop locally — write the .env.local the app needs, then run Vite
cargo-ai hosting app env <app-uuid> > ./territories/.env.local
cd ./territories && npm install && npm run dev

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · references/examples/apps.md (reported line 17)May include surrounding context.

md
cargo-ai hosting app create --name "Territories" --slug territories
# → { "app": { "uuid": "<app-uuid>", "slug": "territories", "url": "https://territories-1a2b3c4d.app.getcargo.run", ... } }

# 3. (optional) Develop locally — write the .env.local the app needs, then run Vite
cargo-ai hosting app env <app-uuid> > ./territories/.env.local
cd ./territories && npm install && npm run dev

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · references/examples/apps.md (reported line 49)May include surrounding context.

md
cargo-ai hosting app create --name "Territories" --slug territories
# → { "app": { "uuid": "<app-uuid>", "slug": "territories", "url": "https://territories-1a2b3c4d.app.getcargo.run", ... } }

# 3. (optional) Develop locally — write the .env.local the app needs, then run Vite
cargo-ai hosting app env <app-uuid> > ./territories/.env.local
cd ./territories && npm install && npm run dev

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · references/examples/apps.md (reported line 52)May include surrounding context.

md
cargo-ai hosting app create --name "Territories" --slug territories
# → { "app": { "uuid": "<app-uuid>", "slug": "territories", "url": "https://territories-1a2b3c4d.app.getcargo.run", ... } }

# 3. (optional) Develop locally — write the .env.local the app needs, then run Vite
cargo-ai hosting app env <app-uuid> > ./territories/.env.local
cd ./territories && npm install && npm run dev

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The trigger list includes broad phrases like 'deploy this', 'make it live', and 'give me a URL to share', which are common conversational requests and can cause the skill to activate in situations the user did not explicitly intend. In a skill that performs hosting, deployment, and secret-management actions, overbroad invocation increases the chance of unintended external publication or state-changing operations.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
70% confidence
Finding

npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.

Content

No source excerpt is available for this finding.

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 132)May include surrounding context.

bash
CARGO_API_BASE=$(cargo-ai whoami | jq -r '.baseUrl')   # https://api.getcargo.io in production
curl -X POST "$CARGO_API_BASE/v1/hosting/custom-domains" \
  -H "authorization: Bearer $CARGO_API_TOKEN" -H "content-type: application/json" \
  -d '{"kind":"app","appUuid":"<uuid>","hostname":"www.example.com"}'
# → DNS records to add: certificate validation records + a cnameTarget for the hostname

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The example writes environment configuration directly into .env.local but does not warn that such files may contain sensitive values and must not be committed, shared, or exposed. In a hosting/deployment skill, users are likely to copy commands verbatim, so omission of handling guidance materially increases the chance of credential leakage through source control, logs, or support bundles.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

This section documents cargo-ai hosting app remove <app-uuid> and notes that it also removes every deployment of the app. However, it does not provide a user-facing warning or cautionary language about the destructive and potentially irreversible impact of this operation.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
82% confidence
Finding

This markdown file includes a command that removes a worker and its deployments, which can affect user data or system state. Although the inline comment states that deployments are also removed, it does not clearly warn users about the destructive nature or encourage caution before execution.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

This markdown file documents hosting app env printing .env.local lines to stdout and recommends redirecting them into a file, but it does not include any warning that these values may contain environment/configuration data that should be handled carefully. For markdown files, SQP-2 applies when descriptions omit warnings about behaviors that could affect user data, privacy, or system integrity.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.