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Security audit

Rxtool

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward local regex helper, with a real but limited risk that complex patterns or large input can consume too much CPU or memory.

Install only if you are comfortable running local regex operations. Avoid using it with untrusted patterns or very large inputs unless the surrounding environment enforces time and memory limits.

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (1)

T09 · Insecure Skill Coding Practices

Warning
Location
rxtool.py:5
Finding

Unbounded User-Supplied Regular Expressions Enable Denial of Service

Content
View full analysis
Remediation
View remediation
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
92% confidence
Finding

The manifest description says to use the skill when asked to 'extract matches from text' or 'understand what a regex does,' alongside a long list of capabilities. While regex is domain-specific, the activation guidance does not clearly limit invocation to explicit regex-related requests or provide exclusion conditions, which can make invocation boundaries ambiguous.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.