78ba0b5b53fd5bfbad0214dcd98dbc8392f29124
2 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Garry Tan
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7bbfc3e36a |
security: fix wave 3 — 9 vulns (file_upload, SSRF, recipe trust, prompt injection) (#174)
* feat(engine): add cap parameter to clampSearchLimit (H6) clampSearchLimit(limit, defaultLimit, cap = MAX_SEARCH_LIMIT) — third arg is a caller-specified cap so operation handlers can enforce limits below MAX_SEARCH_LIMIT. Backward compatible: existing two-arg callers still cap at MAX_SEARCH_LIMIT. This fixes a Codex-caught semantics bug: the prior signature took (limit, defaultLimit) where the second arg was misread as a cap. clampSearchLimit(x, 20) was actually allowing values up to 100, not 20. * feat(integrations): SSRF defense + recipe trust boundary (B1, B2, Fix 2, Fix 4, B3, B4) - B1: split loadAllRecipes into trusted (package-bundled) and untrusted (cwd/recipes, $GBRAIN_RECIPES_DIR) tiers. Only package-bundled recipes get embedded=true. Closes the fake trust boundary that let any cwd-local recipe bypass health-check gates. - B2: hard-block string health_checks for non-embedded recipes (was previously only blocked when isUnsafeHealthCheck regex matched, which the cwd recipe exploit bypassed). Embedded recipes still get the regex defense. - Fix 2: gate command DSL health_checks on isEmbedded. Non-embedded recipes cannot spawnSync. - Fix 4 + B3 + B4: gate http DSL health_checks on isEmbedded; for embedded recipes, validate URLs via new isInternalUrl() before fetch: - Scheme allowlist (http/https only): blocks file:, data:, blob:, ftp:, javascript: - IPv4 range check covering hex/octal/decimal/single-integer bypass forms - IPv6 loopback ::1 + IPv4-mapped ::ffff: (canonicalized hex hextets handled) - Metadata hostnames (AWS, GCP, instance-data) blocked - fetch with redirect: 'manual' + per-hop re-validation up to 3 hops Original PRs #105-109 by @garagon. Wave 3 collector branch reimplemented the fixes after Codex outside-voice review found that PRs #106/#108 alone did not actually gate cwd-local recipes (B1) and that PR #108 missed redirect-following SSRF (B3) and non-http schemes (B4). * feat(file_upload): path/slug/filename validation + remote-caller confinement (Fix 1, B5, H5, M4, Fix 5) - Fix 1 + B5 + H1: validateUploadPath uses realpathSync + path.relative to defeat symlink-parent traversal. lstatSync alone (the original PR #105 approach) only catches final-component symlinks; a symlinked parent dir still followed to /etc/passwd. Now the entire path chain is resolved. - H5: validatePageSlug uses an allowlist regex (alphanumeric + hyphens, slash-separated segments). Closes URL-encoded traversal (%2e%2e%2f), Unicode lookalikes, backslashes, control chars implicitly. - M4: validateFilename allowlist regex. Rejects control chars, backslash, RTL override (\u202E), leading dot/dash. Filename flows into storage_path so this matters for every storage backend. - Fix 5: clamp list_pages and get_ingest_log limits at the operation layer via new clampSearchLimit cap parameter (list_pages caps at 100, get_ingest_log at 50). Internal bulk commands bypass the operation layer and remain uncapped. - New OperationContext.remote flag distinguishes trusted local CLI from untrusted MCP callers. file_upload uses strict cwd confinement when remote=true (default), loose mode when remote=false (CLI). MCP stdio server sets remote=true; cli.ts and handleToolCall (gbrain call) set remote=false. Original PR #105 by @garagon. Issue #139 reported by @Hybirdss. * feat(search): query sanitization + structural prompt boundary (Fix 3, M1, M2, M3) - M1: restructure callHaikuForExpansion to use a system message that declares the user query as untrusted data, plus an XML-tagged <user_query> boundary in the user message. Layered defense with the existing tool_choice constraint (3 layers vs 1). - Fix 3 (regex sanitizer, defense-in-depth): sanitizeQueryForPrompt strips triple-backtick code fences, XML/HTML tags, leading injection prefixes, and caps at 500 chars. Original query is still used for downstream search; only the LLM-facing copy is sanitized. - M2: sanitizeExpansionOutput validates the model's alternative_queries array before it flows into search. Strips control chars, caps length, dedupes case-insensitively, drops empty/non-string items, caps to 2 items. - M3: console.warn on stripped content NEVER logs the query text — privacy-safe debug signal only. Original PR #107 by @garagon. M1/M2/M3 are wave 3 hardening per Codex review. * chore: bump version and changelog (v0.10.2) Security wave 3: 9 vulnerabilities closed across file_upload, recipe trust boundary, SSRF defense, prompt injection, and limit clamping. See CHANGELOG for full details. Contributors: - @garagon (PRs #105-109) - @Hybirdss (Issue #139) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * docs: sync documentation with v0.10.2 security wave 3 - CLAUDE.md: document OperationContext.remote, new security helpers (validateUploadPath, validatePageSlug, validateFilename, isInternalUrl, parseOctet, hostnameToOctets, isPrivateIpv4, getRecipeDirs, sanitizeQueryForPrompt, sanitizeExpansionOutput), updated clampSearchLimit signature, recipe trust boundary, new test files - docs/integrations/README.md: replace string-form health_check example with typed DSL (string checks now hard-block for non-embedded recipes); add recipe trust boundary subsection - docs/mcp/DEPLOY.md: document file_upload remote-caller cwd confinement, symlink rejection, slug/filename allowlists Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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Garry Tan
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13773be071 |
fix: community fix wave — 10 PRs, 7 contributors (v0.9.1) (#65)
* fix: security hardening — search DoS, slug hijack, symlink traversal, content bombs, stdin guard 4 security vulnerabilities closed: - Search limit clamped to 100 (MAX_SEARCH_LIMIT) with statement_timeout 8s - Frontmatter slug authority enforced (path-derived, mismatch rejected) - Symlink traversal blocked (lstatSync in walker + importFromFile) - Content size guard on importFromContent (Buffer.byteLength, 5MB) - Stdin size guard in parseOpArgs (5MB cap) Search pagination added (--offset param on search + query operations). Clamp warning emitted when limit is capped. Co-Authored-By: garagon <garagon@users.noreply.github.com> * fix: PGLite concurrent access lock — prevent Aborted() crash File-based advisory lock using atomic mkdir with PID tracking and 5-minute stale detection. Clear error messages show which process holds the lock and how to recover. Co-Authored-By: danbr <danbr@users.noreply.github.com> * fix: 12 data integrity fixes + stale embedding prevention CTE searchKeyword rewrite (SQL-level LIMIT, not JS splice). Write validation on addLink/addTag/addTimelineEntry/putRawData/createVersion. Health metrics now measure real problems (stale_pages, orphan_pages, dead_links). Orphan chunk cleanup on empty pages. Embedding error logging. contentHash now covers all PageInput fields. Stale embedding NULL'd when chunk_text changes (prevents wrong vector on new text). hybridSearch stops double-embedding query. MCP param validation. type/exclude_slugs search filters now work. pgcrypto extension for Postgres <13. Co-Authored-By: win4r <win4r@users.noreply.github.com> * perf: 30x embedAll speedup + O(n²) fix + ask alias Sliding worker pool (concurrency 20, tunable via GBRAIN_EMBED_CONCURRENCY). O(n²) chunk lookup in embedPage replaced with Map. gbrain ask alias for query (CLI-only, not in MCP tools-json). .idea added to .gitignore. Co-Authored-By: stephenhungg <stephenhungg@users.noreply.github.com> Co-Authored-By: sharziki <sharziki@users.noreply.github.com> Co-Authored-By: hnshah <hnshah@users.noreply.github.com> Co-Authored-By: doguabaris <doguabaris@users.noreply.github.com> * chore: bump version and changelog (v0.9.1) Community fix wave: 10 PRs, 7 contributors. 4 security fixes, PGLite crash fix, 12 data integrity fixes, 30x embed speedup, search pagination, ask alias. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: garagon <garagon@users.noreply.github.com> Co-authored-by: danbr <danbr@users.noreply.github.com> Co-authored-by: win4r <win4r@users.noreply.github.com> Co-authored-by: stephenhungg <stephenhungg@users.noreply.github.com> Co-authored-by: sharziki <sharziki@users.noreply.github.com> Co-authored-by: hnshah <hnshah@users.noreply.github.com> Co-authored-by: doguabaris <doguabaris@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> |