nyxstrike_h2csmuggler
A execute tool on the Nyxstrike MCP server.
This record as markdown: /tools/nyxstrike/nyxstrike-h2csmuggler.md
What nyxstrike_h2csmuggler does on Nyxstrike
AI agents invoke nyxstrike_h2csmuggler to trigger actions in Nyxstrike. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why nyxstrike_h2csmuggler is rated High
H2C smuggling is an active attack technique that exploits HTTP/2 upgrade mechanisms to bypass security controls, proxy authentication, and access internal services. On an offensive security platform alongside tools like payload generation, aircrack, and vulnerability assessment, this tool almost certainly executes HTTP/2 smuggling attacks against targets.
From the tool's definition Tool name 'nyxstrike_h2csmuggler' references h2csmuggler, a known HTTP/2 cleartext (h2c) request smuggling attack tool used in offensive security/penetration testing.
Attacks that exploit this kind of access
The rule that runs nyxstrike_h2csmuggler safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nyxstrike, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nyxstrike_h2csmuggler, this is the rule to start with:
nyxstrike_h2csmuggler stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nyxstrike, apply this rule, and every nyxstrike_h2csmuggler call is checked against it from then on.
Questions about nyxstrike_h2csmuggler
nyxstrike_h2csmuggler is a execute tool on the Nyxstrike MCP server. It is categorised as a Execute tool in the Nyxstrike MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Nyxstrike MCP server in PolicyLayer and add a rule for nyxstrike_h2csmuggler: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nyxstrike. Nothing to install.
nyxstrike_h2csmuggler is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the nyxstrike_h2csmuggler rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for nyxstrike_h2csmuggler. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
nyxstrike_h2csmuggler is provided by the Nyxstrike MCP server (CommonHuman-Lab/nyxstrike). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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