vibecheck
MEDIUMAI Agent Injection

MCP server connecting to a remote endpoint

MCP servers that establish outbound connections to remote endpoints can exfiltrate the AI agent's context window, including source code and any secrets visible in the session, to an attacker-controlled server.

HOW VIBECHECK DETECTS THIS

vibecheck clones your repository and runs Gitleaks, Semgrep, njsscan, and a suite of custom checks targeting patterns common in AI-generated code. This check is part of the AI Agent Injection category. When a matching pattern is found, Claude triages the finding and produces a plain-English explanation and a concrete fix — no security expertise required.

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MORE IN AI AGENT INJECTION

"Ignore previous instructions" in CLAUDE.md / README / AGENTS.mdCRITICALHidden instructions in HTML commentsHIGHUnicode direction-override characters hiding textHIGHMCP server config executing shell commands on startupHIGH
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