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Security audit

NexusFIX Development Expert

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only NexusFIX coding guidance skill with no executable behavior, persistence, credential use, or hidden data access.

Installers should know this skill may activate on general FIX protocol prompts and steer answers toward NexusFIX-specific C++23 patterns; use it when that specialization is desired and verify any latency or API claims against the actual NexusFIX project documentation.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The trigger list includes very broad terms such as "FIX protocol" and "FIX connectivity," which are likely to match many unrelated prompts involving financial messaging or generic debugging. This can cause the skill to auto-activate outside its intended scope, increasing the chance that users receive overly specialized or unsafe guidance in contexts where the assumptions and constraints of NexusFIX do not apply.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.