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Security audit

AccuLynx

Security checks for vulnerabilities and agentic risk

Overview

AccuLynx operations have clear approval controls, but setup can execute unreviewed software with broader agent changes that the skill does not explain.

Review and approve CLI installation separately, preferably using an inspected, pinned release. OOMOL will mediate access to your connected AccuLynx account. Preserve the required approvals for business-data changes, and review unwanted agent-skill synchronization; the publisher's [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md) documents OO_SKILLS_SYNC_DISABLED. Remote installer and connector behavior remain outside the verified artifact.

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 (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

The supplied code installs software from Oomol, while the description promises AccuLynx operations. Nothing in the chunk establishes this installer as a supporting dependency for AccuLynx functionality. The remote script's contents are not provided, so its additional behavior cannot be assessed.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

Piping a mutable remote installer directly into Bash executes its contents without a pinned version, integrity check, or review; the PowerShell alternative has the same weakness. Compromise of the installer endpoint or distribution infrastructure could yield arbitrary code execution with the invoking account's privileges, potentially exposing local files and credentials. HTTPS and conditional setup reduce some exposure but do not establish artifact integrity.

Content

Scanner excerpt · SKILL.md (reported line 66)May include surrounding context.

Setup executes remote installation scripts without a warning about running third-party code.

Medium
Category
Output Handling
Confidence
92% confidence
Finding

The setup instructions direct immediate execution of downloaded shell and PowerShell code without explaining that this grants third-party code the agent's local execution privileges or requesting installation approval. The missing-command condition limits exposure, but the user-facing confirmation requirement covers AccuLynx writes rather than local software installation.

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 87)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