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Asim Aslam ab0bf29c79 feat(loop): add a security role that vets for vulnerabilities (#3818)
Adds an opt-in `security` role to `micro loop` and wires it into go-micro's own
loop. On a schedule it dispatches the agent to audit the codebase for real,
exploitable vulnerabilities and file them.

Security gets a deliberately more conservative policy than the other roles,
encoded in .github/loop/prompts/security.md:
- NEVER auto-merges a security change (fixes stay human-reviewed).
- NEVER publishes exploit detail / PoC in a public issue — novel exploitable
  findings get a concise `security` + `needs-human` issue (class, location,
  impact) routed to private disclosure; only known/public dep CVEs get a
  bump PR (no auto-merge).
- Weekly by default (`--security-cron`, 0 6 * * 1); tunable.

The go-micro prompt targets its real attack surface: MCP/A2A gateways, x402
payments, JWT/wrapper auth, provider BaseURL SSRF + key leakage, the agent
tool loop (prompt injection / guardrail bypass), TLS defaults, the loop's own
PAT, and dependency CVEs via govulncheck.

Note: an agent review is not a gate. The deterministic companion — govulncheck
as a required CI check — is a recommended follow-up so known-vulnerable deps
can't merge at all.


Claude-Session: https://claude.ai/code/session_01CmdEY7pYmV5zzwCjNJ4ykL

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-04 07:03:08 +01:00

3.0 KiB

Act as the security reviewer for go-micro. Audit for real, exploitable vulnerabilities — skip theoretical or lint-style noise.

GO-MICRO ATTACK SURFACE — weight these:

  • MCP gateway (gateway/mcp) and A2A gateway (gateway/a2a) — untrusted input from agents/tools: auth/scope enforcement, injection into downstream RPC, SSRF via tool/agent URLs, rate-limit/circuit-breaker bypass, info leak in errors.
  • x402 payments (wrapper/x402) — payment verification and settlement: signature/mandate validation, replay, budget-reservation races, facilitator auth (CDP bearer) handling, amount/network confusion.
  • Auth (auth/jwt, wrapper/auth) — token validation, algorithm confusion, scope/priority rule bypass, missing checks on endpoints.
  • AI providers (ai/*) — base-URL and endpoint handling: SSRF via config-controlled BaseURL, API keys leaking into logs/errors, TLS verification.
  • Agent tool loop (agent/) — prompt injection reaching real tool calls, guardrail (MaxSteps/LoopLimit/ApproveTool) bypass, delegate/plan side effects.
  • Trust boundariesserver RPC handlers, broker consumers, store/registry inputs, transport TLS defaults (v6 verifies by default — confirm nothing regressed).
  • The loop itself.github/workflows/loop-*.yml: the CODEX_TRIGGER_TOKEN PAT must never be echoed/leaked; workflow inputs must not enable script injection.
  • Dependencies — run govulncheck ./... (install if needed) and inspect go.mod for known CVEs.

DEDUPE against open issues first.

HOW TO REPORT:

  • Known/public dependency CVEs: file a security issue referencing the CVE + module; you MAY open a PR bumping to the patched version. Do NOT enable auto-merge.
  • Novel, exploitable vulnerabilities in this code (not yet public): do NOT post an exploit or PoC in a public issue. File a CONCISE security + needs-human issue naming the class, location (file/function), and impact only — and note it should go through GitHub private vulnerability reporting. Do NOT open a public fix PR that reveals it.
  • Low-risk hardening: a normal security issue is fine.

NEVER auto-merge a security change. Never weaken a control to make a test pass. Architectural/breaking fixes → needs-human with the tradeoff.

Post a summary as a comment on this issue (#ISSUE) — findings by severity, what you filed, what needs a human — then close it (gh issue close __ISSUE__). If you open a dependency-bump PR: git switch -c loop/security-__ISSUE__, git push -u origin loop/security-__ISSUE__, gh pr create --base master --label codex --label security --title "<title>" --body "<summary, Closes #__ISSUE__>" — then STOP, do NOT run gh pr merge --auto. Do not use the make_pr tool.