fix: post-merge review follow-ups (path traversal, Sentry PII, Slack instr guard, MCP join rate-limit)#325
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Follow-ups from an aggregated teammate review of 128 PRs merged between 2026-04-09 and 2026-04-23. Five concrete gaps patched: - worker: constrain UploadUserFile to the workspace root (#203 follow-up). path.join allowed `../` and absolute paths to escape the workspace. Now resolves and rejects anything outside workspaceDir when one is set. - core: flip Sentry sendDefaultPii to false (#172 follow-up). User content and identifiers flow through this stack; the schema has no scrubbing so PII-by-default was unsafe. - gateway: make SlackInstructionProvider extend BaseInstructionProvider (#269 follow-up). Sibling Skills/Network providers are wrapped in a try/catch that returns "" on error; Slack was bypassing it and would crash session-context assembly if listConnections threw. - owletto-backend: rate-limit the join_organization MCP tool to match the REST endpoint (#296 follow-up). Keyed on userId since MCP calls don't carry a client IP. Skipped one reviewer finding: removing the process.env fallback for API keys at worker.ts:1099/1109 (the inconsistency with #225 base-URL code). Embedded/dev workers depend on that fallback since credentialStore is only populated from gateway-supplied session context.
Second pass on the 2-week PR review. Five more gaps closed: - gateway: unit tests for verifyOwnedAgentAccess covering owner, cross-tenant, cross-platform, agent-scoped, admin-bypass, unknown-agent, and external OAuth mismatches (#285 follow-up). Closes the test hole in the cross-tenant ownership guard. - owletto-backend: validate each CSP frame-ancestor entry against a strict host-source / scheme-source grammar before joining (#246 follow-up). Malformed env entries like `https:// lobu.ai` are now dropped instead of silently rendered into the directive. - owletto-backend: introduce normalizeHost() in utils/public-origin and use it from getSubdomainZone, extractSubdomainOrg, getCanonicalRedirectUrl, and the BetterAuth trustedOrigins wiring (#234/#224/#214 follow-up). Unifies the ad-hoc .toLowerCase()/.replace() patterns and adds IDN→punycode so `müller.lobu.ai` matches the ASCII zone configured in env. - owletto-backend: redact member emails that surface via template_data and tab template_data in resolve_path, not only on the single resolved entity (#309 follow-up). A dashboard data source that enumerates $member entities no longer leaks emails to non-admin callers. New utils/member-redaction helper plus unit coverage. - owletto-backend: treat #311 as already closed — ToolContext.memberRole is `string | null` (required, not optional), so TypeScript already catches future literal omissions at construction.
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Summary
Follow-ups from an aggregated review of 128 PRs merged between 2026-04-09 and 2026-04-23 (7 parallel review agents, grouped by theme). Five concrete gaps patched in one PR.
Fixes
worker— path traversal inUploadUserFile(follow-up to fix(worker): QA hardening for careops agent (Gemini support, UploadUserFile workspace paths, dedup error messages) #203).path.join(workspaceDir, args.file_path)allowed../and absolute paths to escape the workspace. Nowpath.resolves both branches and rejects anything that doesn't land underworkspaceDirwhen one is set. →packages/worker/src/shared/tool-implementations.tscore— SentrysendDefaultPii: true(follow-up to feat(observability): vendor-neutral OTEL tracing + opt-in Sentry #172). User content and identifiers travel through this stack and nobeforeSendscrubber was configured. Flipped tofalse. →packages/core/src/sentry.tsgateway—SlackInstructionProviderbypassedBaseInstructionProvider(follow-up to refactor(gateway): extract BaseInstructionProvider and structured ValidationError #269). SiblingSkills/Networkproviders are wrapped in a try/catch that returns""on error; Slack was implementing the interface directly and would crash session-context assembly iflistConnections()threw. ExportedBaseInstructionProviderand extended it. →packages/gateway/src/connections/slack-instruction-provider.ts,packages/gateway/src/services/instruction-service.tsowletto-backend—join_organizationMCP tool had no rate-limit (follow-up to feat(owletto-backend): public-org read access + self-serve join #296). The RESTPOST /api/:orgSlug/joinendpoint is capped at 10/hour/IP; the MCP tool was unlimited. Added the same cap keyed onuserId(MCP calls don't carry a client IP). →packages/owletto-backend/src/tools/organizations.tsExplicitly skipped
worker.ts:1099/1109process.envfallback for API keys (one reviewer flagged it as inconsistent with fix(gateway,worker): deliver provider base URLs via session context only #225's base-URL change). Kept — embedded/dev workers depend on it sincecredentialStoreis only populated from gateway-supplied session context.@lobu/cli-corenpm deprecation). Better as separate PRs.Test plan
UploadUserFilewith a path containing../../etc/passwdreturns the "outside workspace" error instead of uploading.UploadUserFilewith an absolute path outsideworkspaceDirreturns the error.UploadUserFilewith a normal relative or absolute-inside-workspace path still uploads.SENTRY_DSNunset → no-op.ChatInstanceManager.listConnections()throws insideSlackInstructionProvider, session-context assembly returns an empty instruction string instead of surfacing the error.join_organization11× within an hour yields a rate-limit error on the 11th call.https://claude.ai/code/session_011oAMBGGtHtsYyUdsqHwr51
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