runcastle@1.6.2
Burn tickets into shipped features with Claude Code.
AI Security Review
scanned 2d ago · by lpm-firewall-aiThe default server startup sends a persistent random install ID, version, and platform to the package's own update endpoint. The observed payload is limited, but the README does not disclose the identifier collection, so this is suspicious runtime telemetry.
Static reason
One or more suspicious static signals were detected.
Trigger
Starting the server, including through the default runcastle command.
Impact
Allows the package service to link update checks from the same installation; no credentials or project contents were observed in the payload.
Mechanism
Posts a persistent random install ID, version, and platform to the package's ping endpoint.
AI rationale
The default server startup sends a persistent random install ID, version, and platform to the package's own update endpoint. The observed payload is limited, but the README does not disclose the identifier collection, so this is suspicious runtime telemetry.
Evidence
index.jsREADME.md
Network endpoints1
ping.runcastle.dev
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- Starting the server automatically invokes the update check.
- The update check posts a persistent install ID, package version, and platform to ping.runcastle.dev.
- The README describes an in-app update banner but does not explain that the check sends a persistent install ID.
Evidence against
- The observed update payload contains no credentials, project data, or file contents.
- The code recognizes the DO_NOT_TRACK environment variable.
Behavioral surface
ChildProcessCryptoEnvironmentVarsEvalFilesystemNetworkShellWebSocket
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
Source & flagged code
8 flaggedbin/runcastle.jsView file
2190// src/workflows/burn-user.ts
L2191: import { spawnSync } from "child_process";
L2192: function runId(args) {
High
Child Process
Package source references child process execution.
bin/runcastle.jsView on unpkg · L21903108if (/\.(cmd|bat)$/i.test(resolved)) {
L3109: return { file: process.env.ComSpec ?? "cmd.exe", args: ["/c", resolved, ...args] };
L3110: }
High
193outcome: GateCommandOutcome,
L194: exitCode: z2.number().nullable(),
L195: reason: z2.string().optional(),
...
L465: purpose: SessionPurpose.optional(),
L466: purposeData: MergeBranchPair.optional(),
L467: ccSessionId: z3.string().optional(),
...
L617: }
L618: var REVIEWS_BASE = "/api/reviews", REVIEW_ARTIFACTS_ROUTE = "/:featureId", REVIEW_WALKTHROUGH_ROUTE = "/ticket/:ticketId/walkthrough.webm", REVIEW_GATE_LOG_ROUTE = "/ticket/:ticket...
L619: var init_routes = __esm(() => {
...
L850: try {
L851: const parsed = JSON.parse(trimmed);
L852: if (parsed && typeof parsed === "object")
High
Command Output Exfiltration
Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.
Findings
7 High3 Medium5 Low
HighChild Processbin/runcastle.js
HighShellbin/runcastle.js
HighCredential Redirect Persistenceindex.js
HighCommand Output Exfiltrationbin/runcastle.js
HighObfuscated Payload Loaderbin/runcastle.js
HighCross File Remote Execution Contextbin/runcastle.js
HighSemantic Analysis Limitedbin/runcastle.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowEval
LowWeak Cryptobin/runcastle.js
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to runcastle@1.6.2.
See all versions of runcastle for other recorded verdicts.
- Review the evidence and your use of runcastle@1.6.2 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.