Please report vulnerabilities privately, not as a public issue, so a fix can ship before the details are public.

Use GitHub's private reporting on this repository: Security tab, then Report a vulnerability. That opens a draft advisory visible only to you and the maintainers.

Useful in a report: what an attacker gains, the smallest reproduction you have (a curl call against a local engine is ideal), the version or commit, and whether AGENTX_AUTH was enabled. Expect an acknowledgement within a few working days. This is a small project, so please treat that as a best effort rather than a contractual SLA.

Please do not run automated scanners against any hosted AgentX instance. Everything here is self-hostable, so test against your own.

Fixes land on main and go out in the next release. There are no long-lived maintenance branches, so "upgrade to the latest release" is the supported path.

Worth stating, because several reports would otherwise describe the documented design:

• No dashboard login by default. The engine trusts anything that can reach its port, which assumes one machine and one operator. AGENTX_AUTH=enabled turns on sign-in for shared deployments. See README's "Dashboard authentication".
• Project API keys are stored in plaintext in the engine's own database, and the dashboard shows them. That is deliberate: the key is the project selector, an operator has to be able to copy it into an SDK, and it is stored in the same database as the telemetry it protects. So database read access is already total compromise, and hashing the key would not change that. Keys carry 192 bits of entropy from crypto.randomBytes, and both credential and data-plane request rates are capped by default (engine/src/auth/rateLimit.ts).
• LLM provider keys are write-only over the API. They are stored so the engine can call OpenAI and Anthropic on your behalf, and read back only in masked form.
• Code scorers execute code you supply, in a subprocess, by design. They are an operator feature, not a sandbox. Treat the ability to write a scorer as equivalent to shell access on the engine host.
• Exposing the engine to the internet is your call to make deliberately. Put it behind TLS and AGENTX_AUTH=enabled, and set AGENTX_TRUSTED_ORIGINS.

Reports that show a way around one of these boundaries are very much in scope. A bypass of project scoping is the one to look hardest at: every project-scoped query derives its tenancy from the resolved API key (engine/src/auth/apiKey.ts), and anything that reads one project's rows with another project's key is a serious bug.