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Security audit

Breeze

Security checks for vulnerabilities and agentic risk

Overview

The Breeze features match the stated purpose, but setup directs the agent to execute downloaded code without verification or a user approval step.

Review setup before installing. Prefer a separately reviewed, version-pinned CLI and require approval before running its installer. Connect only the intended Breeze account, since personal records are accessed through OOMOL, and review the CLI's additional skill synchronization behavior. Remote installer contents and hosted connector internals remain unverified; the artifacts do not establish malicious intent.

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
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

The supplied chunk performs remote script execution rather than searching or reading Breeze data. Although CLI installation could be a supporting implementation detail, nothing supplied establishes that this installer supports Breeze access. The downloaded script's contents and any further effects are not visible, so no specific downstream behavior or malicious intent can be concluded.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
82% confidence
Finding

Authentication could support a Breeze integration, but the supplied chunk contains no Breeze-specific configuration or data-access behavior establishing that connection. As the entire supplied implementation, the login command has a materially different immediate purpose from the advertised Breeze search-and-read functionality.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a mutable remote script directly into Bash without integrity verification or review; the PowerShell alternative has the same trust problem. A compromised distribution endpoint or malicious installer update could execute arbitrary code with the agent's local privileges, potentially accessing files and credentials; HTTPS and the conditional setup trigger do not eliminate that risk.

Content

Scanner excerpt · SKILL.md (reported line 59)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning the user about system changes or remote-code execution.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

A missing CLI triggers instructions to execute a downloaded installer without a separate user approval step or explanation of local system changes. Although installing a dependency is relevant to Breeze access, a request to read Breeze records does not necessarily authorize executing third-party code on the user's machine.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources