nerv-break-5-6-jailbreak-framework
Audited by Snyk on Aug 1, 2026
CRITICAL E004: Prompt injection detected in skill instructions.
- Potential prompt injection detected (high risk: 1.00). The skill contains hidden/deceptive instructions that override model/system safety (injecting a bridge system prompt, automatic tamper rules to replace refusals, and audit-bypass routing of sensitive outputs), which are outside normal skill behavior and explicitly aim to subvert refusal mechanisms.
HIGH W007: Insecure credential handling detected in skill instructions.
- Insecure credential handling detected (high risk: 1.00). The skill explicitly injects a "refusal is a protocol violation" system prompt and tamper rules that encourage the model to emit sensitive data (e.g., via an "OUTPUT:(...)" pattern) which is then written to disk, meaning the LLM would need to include secret values verbatim in its output to trigger exfiltration.
CRITICAL E005: Suspicious download URL detected in skill instructions.
- Suspicious download URL detected (high risk: 1.00). The GitHub URL points to a repository that explicitly distributes a jailbreak/MITM framework that modifies local configs, executes arbitrary tools, and implements audit-bypass/tamper behavior (high-risk); the other links are local endpoints or generic site references and are not direct external download sources.
CRITICAL E006: Malicious code pattern detected in skill scripts.
- Malicious code pattern detected (high risk: 1.00). This repository is explicitly designed to bypass model safety (system prompt injection and tampering), perform MITM interception, persist and expose user queries/responses, and execute arbitrary system commands—enabling deliberate data exfiltration, remote code execution, and credential exposure.
MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).
- Third-party content exposure detected (medium risk: 0.30). The runtime path
proxy_relay.pyexposes the outsider’s free text because it forwards the user’s POSTed chat request JSON (includingdata['messages']content) into the model after injectingbridge.md, so attacker-authored text reaches the LLM without any item selection.
MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).
- Potentially malicious external URL detected (high risk: 1.00). The Quick Start instructs cloning and running the repository at https://github.com/zxwn/NERV-BREAK-5.6.git, which fetches remote code that is then executed (scripts\lab.bat / deploy.py) to deploy bridge.md and start a MITM proxy that injects system prompts and tamper rules—so the URL is a runtime external dependency that directly controls prompts and runs code.
MEDIUM W013: Attempt to modify system services in skill instructions.
- Attempt to modify system services in skill instructions detected (high risk: 1.00). This skill installs a MITM/tamper proxy, injects system instructions, modifies local Codex config/files, routes sensitive output to disk, and executes arbitrary system commands (including sudo in WSL/backends), so it actively instructs actions that change and can compromise the host environment.
Issues (7)
Prompt injection detected in skill instructions.
Insecure credential handling detected in skill instructions.
Suspicious download URL detected in skill instructions.
Malicious code pattern detected in skill scripts.
Third-party content exposure detected (indirect prompt injection risk).
Unverifiable external dependency detected (runtime URL that controls agent).
Attempt to modify system services in skill instructions.