registry / Credential exfiltration / @viraatdas/rudder / 3.5.0

@viraatdas/rudder@3.5.0

A TUI for managing coding agents: run Claude Code, Codex and opencode side by side, each in its own isolated jj workspace.

AI Security Review

scanned 5d ago · by lpm-firewall-ai

Cloud launch snapshots can transfer a saved Claude OAuth credential to the configured Rudder Cloud endpoint by default without a separate credential-transfer choice. Because this occurs through explicit cloud functionality and no install-time transfer was found, warn rather than block.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

The user launches or onloads a workspace to Rudder Cloud on macOS.

Impact

The remote cloud workspace receives a reusable Claude login credential, creating conditional exposure beyond Claude's own service.

Mechanism

The snapshot code reads the Claude OAuth credential from Keychain, stages it as .claude/.credentials.json, and includes the archive in a cloud request; the control-plane URL is configurable.

AI rationale

Evidence

dist/cloud.js.claude/.credentials.json

Network endpoints2

rudder-cloud-control.fly.devRUDDER_CLOUD_URL + /api/rudder/sail/launch

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The manifest runs a postinstall helper. That helper skips when told to, when running as root, or when jj is already available; otherwise it provisions a checksum-verified jj binary for the workspace.
On macOS, cloud snapshot creation reads the Claude Code credential from Keychain and stages it as a credentials file. Credential inclusion defaults on, and the launch path creates a snapshot without disabling it.
The launch path places the snapshot archive in a POST body sent to Rudder Cloud. Its default control-plane URL is rudder-cloud-control.fly.dev, and RUDDER_CLOUD_URL can change the recipient.
Other inspected paths show local account-identity comparison with Rudder Cloud, a Codex quota request to chatgpt.com, Claude conversation-path lookup, and Codex model-cache reading. The board daemon excerpts show a loopback route and quota response handling.

Evidence against

The credential transfer is tied to explicit cloud-launch or workspace actions and requires Rudder Cloud authentication; the inspected npm postinstall path does not perform it.
The transfer supports booting a remote cloud workspace with the user's Claude login, but the inspected snapshot path does not require a separate affirmative choice for transferring that credential.

Source & flagged code

21 flagged

package.jsonView file

Lines 1-58json

2 "name": "@viraatdas/rudder",

3 "version": "3.5.0",

4 "description": "A TUI for managing coding agents: run Claude Code, Codex and opencode side by side, each in its own isolated jj workspace.",

5 "keywords": [

6 "tui",

7 "coding-agents",

8 "claude-code",

9 "codex",

10 "opencode",

11 "ai-agents",

12 "jujutsu",

13 "terminal",

14 "cli"

15 ],

16 "license": "Elastic-2.0",

17 "homepage": "https://rudder.exla.ai",

18 "repository": {

19 "type": "git",

20 "url": "git+https://github.com/exla-ai/rudder.git"

21 },

22 "type": "module",

23 "bin": {

High

Unverified Remote Native Payload Install

Install-time source downloads a native archive from a fixed external host without transport verification, extracts it, and installs an executable payload.

package.jsonView on unpkg · L1

24 "rudder": "dist/index.js"

25 },

26 "scripts": {

27 "clean": "node -e \"require('fs').rmSync('dist',{recursive:true,force:true})\"",

28 "build": "npm run clean && tsc -p tsconfig.json && npm run build-board && npm run build-native && npm run copy-native && npm run chmod-cli",

29 "build-board": "esbuild src/board/ui/index.tsx --bundle --minify --format=esm --jsx=automatic --jsx-import-source=preact --outfile=dist/board/board.js && esbuild src/board/ui/board.css --bundle --minify --outfile=dist/board/board.css",

30 "build-native": "cargo build --release --manifest-path native/Cargo.toml",

31 "check": "tsc -p tsconfig.json --noEmit",

32 "test": "tsc -p tsconfig.json && npm run chmod-cli && node --test tests/*.test.mjs",

33 "test:tui": "node --test tests/tui/*.test.mjs",

34 "test:worker-scroll": "cargo test --manifest-path native/Cargo.toml top_origin_scroll_region_history_scrolls_like_terminal_scrollback && cargo test --manifest-path native/Cargo.toml worker_wheel && cargo test --manifest-path native/Cargo.toml wheel_scroll && cargo test --manifest-path native/Cargo.toml worker_page && cargo test --manifest-path native/Cargo.toml codex_alternate_screen_page_key",

35 "copy-native": "node scripts/copy-native.mjs",

36 "chmod-cli": "node -e \"require('fs').chmodSync('dist/index.js',0o755)\"",

37 "prepack": "npm run build",

38 "postinstall": "node scripts/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L38

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L38

39 "start": "node dist/index.js",

40 "test:tui:report": "rm -rf .tui-report tui-report.html && node --test --test-reporter=spec --test-reporter-destination=stdout --test-reporter=tui-integration-tests/reporter --test-reporter-destination=tui-report.html tests/tui/*.test.mjs",

41 "mutate:tui": "node tests/tui/mutate.mjs"

42 },

43 "files": [

44 "dist/",

45 "assets/",

46 "scripts/copy-native.mjs",

47 "scripts/postinstall.mjs",

48 "README.md",

49 "package.json"

50 ],

51 "publishConfig": {

52 "access": "public"

53 },

54 "engines": {

55 "node": ">=22"

56 },

57 "devDependencies": {

58 "@types/node": "^22.15.3",

dist/util.jsView file

Lines 1-21javascript

1import { spawn, spawnSync } from "node:child_process";

2import { createHash, randomUUID } from "node:crypto";

3import fs from "node:fs";

4import fsp from "node:fs/promises";

dist/improve/schedule.jsView file

Lines 1-27javascript

1import os from "node:os";

2import path from "node:path";

3import { promises as fs } from "node:fs";

4import { ensureDir, pathExists, runCommand, shortenHome } from

dist/cloud.jsView file

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/cloud.js: "~/.claude/.credentials.json", "~/.claude/settings.json", "~/.claude/hooks", "~/.claude/CLAUDE.md", "~/.claude.json", "~/.codex/auth.json", "~/.codex/config.toml", "~/.codex/AGENTS.md",

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/cloud.jsView on unpkg

dist/native/darwin-x64/rudder-nativeView file

•path = dist/native/darwin-x64/rudder-native kind = native_binary sizeBytes = 5224784 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

dist/native/darwin-x64/rudder-nativeView on unpkg

dist/improve/collect.jsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 7

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/improve/collect.jsView on unpkg

dist/usage.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@3.1.22 matchedPath = dist/usage.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:3.1.22 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High