fix(bin): pass search params via env vars instead of string interpolation#819
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fix(bin): pass search params via env vars instead of string interpolation#819garagon wants to merge 1 commit intogarrytan:mainfrom
garagon wants to merge 1 commit intogarrytan:mainfrom
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…tion
gstack-learnings-search interpolates --query, --type, and --limit
directly into a bun -e JavaScript string. A crafted query value can
break out of the string literal and execute arbitrary code:
gstack-learnings-search --query "'; require('child_process').execSync('...'); //"
Pass values via environment variables (process.env) instead of shell
string interpolation. Tested: normal queries work, injection payload
no longer executes.
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CI note: the eval failures require ANTHROPIC_API_KEY which is not available on fork PRs. Free tests (bun test) pass locally. The pre-existing test-2 failure also reproduces on main. |
garrytan
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Apr 5, 2026
Replace shell string interpolation with process.env in gstack-learnings-search to prevent arbitrary code execution via crafted learnings entries. Also fixes the CROSS_PROJECT interpolation that the original PR missed. Adds 3 regression tests verifying no shell interpolation remains in the bun -e block. Co-authored-by: garagon <garagon@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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garrytan
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Apr 6, 2026
* fix(bin): pass search params via env vars (RCE fix) (#819) Replace shell string interpolation with process.env in gstack-learnings-search to prevent arbitrary code execution via crafted learnings entries. Also fixes the CROSS_PROJECT interpolation that the original PR missed. Adds 3 regression tests verifying no shell interpolation remains in the bun -e block. Co-authored-by: garagon <garagon@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(browse): add path validation to upload command (#821) Add isPathWithin() and path traversal checks to the upload command, blocking file exfiltration via crafted upload paths. Uses existing SAFE_DIRECTORIES constant instead of a local copy. Adds 3 regression tests. Co-authored-by: garagon <garagon@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(browse): symlink resolution in meta-commands validateOutputPath (#820) Add realpathSync to validateOutputPath in meta-commands.ts to catch symlink-based directory escapes in screenshot, pdf, and responsive commands. Resolves SAFE_DIRECTORIES through realpathSync to handle macOS /tmp -> /private/tmp symlinks. Existing path validation tests pass with the hardened implementation. Co-authored-by: garagon <garagon@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * docs: add uninstall instructions to README (#812) Community PR #812 by @0531Kim. Adds two uninstall paths: the gstack-uninstall script (handles everything) and manual removal steps for when the repo isn't cloned. Includes CLAUDE.md cleanup note and Playwright cache guidance. Co-Authored-By: 0531Kim <0531Kim@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(browse): Windows launcher extraEnv + headed-mode token (#822) Community PR #822 by @pieterklue. Three fixes: 1. Windows launcher now merges extraEnv into spawned server env (was only passing BROWSE_STATE_FILE, dropping all other env vars) 2. Welcome page fallback serves inline HTML instead of about:blank redirect (avoids ERR_UNSAFE_REDIRECT on Windows) 3. /health returns auth token in headed mode even without Origin header (fixes Playwright Chromium extensions that don't send it) Also adds HOME/USERPROFILE fallback for cross-platform compatibility. Co-Authored-By: pieterklue <pieterklue@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(browse): terminate orphan server when parent process exits (#808) Community PR #808 by @mmporong. Passes BROWSE_PARENT_PID to the spawned server process. The server polls every 15s with signal 0 and calls shutdown() if the parent is gone. Prevents orphaned chrome-headless-shell processes when Claude Code sessions exit abnormally. Co-Authored-By: mmporong <mmporong@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(security): IPv6 ULA blocking, cookie redaction, per-tab cancel, targeted token (#664) Community PR #664 by @mr-k-man (security audit round 1, new parts only). - IPv6 ULA prefix blocking (fc00::/7) in url-validation.ts with false-positive guard for hostnames like fd.example.com - Cookie value redaction for tokens, API keys, JWTs in browse cookies command - Per-tab cancel files in killAgent() replacing broken global kill-signal - design/serve.ts: realpathSync upgrade prevents symlink bypass in /api/reload - extension: targeted getToken handler replaces token-in-health-broadcast - Supabase migration 003: column-level GRANT restricts anon UPDATE scope - Telemetry sync: upsert error logging - 10 new tests for IPv6, cookie redaction, DNS rebinding, path traversal Co-Authored-By: mr-k-man <mr-k-man@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * fix(security): CSS injection guard, timeout clamping, session validation, tests (#806) Community PR #806 by @mr-k-man (security audit round 2, new parts only). - CSS value validation (DANGEROUS_CSS) in cdp-inspector, write-commands, extension inspector - Queue file permissions (0o700/0o600) in cli, server, sidebar-agent - escapeRegExp for frame --url ReDoS fix - Responsive screenshot path validation with validateOutputPath - State load cookie filtering (reject localhost/.internal/metadata cookies) - Session ID format validation in loadSession - /health endpoint: remove currentUrl and currentMessage fields - QueueEntry interface + isValidQueueEntry validator for sidebar-agent - SIGTERM->SIGKILL escalation in timeout handler - Viewport dimension clamping (1-16384), wait timeout clamping (1s-300s) - Cookie domain validation in cookie-import and cookie-import-browser - DocumentFragment-based tab switching (XSS fix in sidepanel) - pollInProgress reentrancy guard for pollChat - toggleClass/injectCSS input validation in extension inspector - Snapshot annotated path validation with realpathSync - 714-line security-audit-r2.test.ts + 33-line learnings-injection.test.ts Co-Authored-By: mr-k-man <mr-k-man@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * chore: bump version and changelog (v0.15.13.0) Community security wave: 8 PRs from 4 contributors (@garagon, @mr-k-man, @mmporong, @0531Kim, @pieterklue). IPv6 ULA blocking, cookie redaction, per-tab cancel signaling, CSS injection guards, timeout clamping, session validation, DocumentFragment XSS fix, parent process watchdog, uninstall docs, Windows fixes, and 750+ lines of security regression tests. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> --------- Co-authored-by: garagon <garagon@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Co-authored-by: 0531Kim <0531Kim@users.noreply.github.com> Co-authored-by: pieterklue <pieterklue@users.noreply.github.com> Co-authored-by: mmporong <mmporong@users.noreply.github.com> Co-authored-by: mr-k-man <mr-k-man@users.noreply.github.com>
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--query and --type values are interpolated directly into a bun -e JavaScript string (line 49-52 of gstack-learnings-search). A crafted query breaks out of the string literal and executes arbitrary code.
Tested before fix:
gstack-learnings-search --query "'; require('child_process').execSync('echo RCE > /tmp/poc'); //"
Result: /tmp/poc created with content "RCE"
Tested after fix: same payload, /tmp/poc not created. Normal queries return results correctly.
Change: replaced shell string interpolation with environment variables (process.env).