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Security audit

Together AI

Security checks for vulnerabilities and agentic risk

Overview

The Together AI workflow fits its purpose, but setup executes unchecked remote code and leaves broader changes to agent applications unexplained.

Review the CLI installation separately before enabling automatic setup. Use a reviewed release, decide whether cross-application skill synchronization is acceptable, and limit submitted content and inference spending to your request. Upstream documents OO_SKILLS_SYNC_DISABLED=1 to prevent startup skill writes. The remote installer and hosted connector remain outside the inspected artifact; the evidence supports review rather than a malicious verdict. [CLI controls](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md)

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 (6)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The supplied command does not visibly access Together AI or perform its declared data operations. Instead, it retrieves and executes an installer from cli.oomol.com, with no demonstrated connection to the declared purpose. The downloaded script is not supplied, so its further actions cannot be determined.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
88% confidence
Finding

Authentication can be a supporting implementation detail, but the supplied chunk consists entirely of an oo login command and shows no Together AI integration or data operations. Its demonstrated primary behavior therefore differs materially from the declared purpose.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The fallback pipes a remotely fetched, unpinned script directly into a shell without an integrity check or review. Compromise of the distribution endpoint or installer could execute arbitrary code with the agent process's permissions; the Windows installation example has the same weakness, although setup runs only when the CLI is missing.

Content

Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.

Chat generation is classified as a read, bypassing the documented confirmation gate.

Medium
Category
Excessive Agency
Confidence
92% confidence
Finding

The untagged create_chat_completion action inherits the instruction that untagged actions are reads and safe to run directly, although generating completions consumes billable inference resources. This misclassification bypasses the skill's confirmation gate, potentially allowing unexpected charges, although an explicit user request for a completion reduces that risk.

Content

No source excerpt is available for this finding.

Chat completion requests are classified as safe reads without warning that conversation content is sent to a third-party service.

Medium
Category
Output Handling
Confidence
88% confidence
Finding

The workflow instructs the agent to execute actions, and the safety section treats the untagged create_chat_completion action as a read that is safe to run directly. Chat completion requests transmit message content to Together AI through the connector, but the skill provides no warning about sending potentially sensitive user content; the write-confirmation safeguard does not cover this action.

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 78)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