registry / @getstackrun/sdk / 1.3.0
@getstackrun/sdk@1.3.0
Official JavaScript/TypeScript SDK for STACK - the runtime control plane for AI agents
AI Security Review
scanned 3d ago · by lpm-firewall-aiThe flagged command execution is limited to opening the browser during interactive authentication, and agent enrollment sends the generated public key while retaining the private key locally. The package has no install hook that runs for registry installs, and no unrelated credential exfiltration or unauthorized account action was found.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
An application calls SDK APIs; browser authentication is attempted only when credentials are unavailable and interactive conditions permit it.
Impact
No unauthorized collection, unrelated credential transfer, or unrequested account action was identified.
Mechanism
The SDK sends authentication requests to the configured STACK API, stores credentials and agent keys under the user's .stack directory, and may launch the system browser for sign-in or enrollment.
AI rationale
The flagged command execution is limited to opening the browser during interactive authentication, and agent enrollment sends the generated public key while retaining the private key locally. The package has no install hook that runs for registry installs, and no unrelated credential exfiltration or unauthorized account action was found.
Evidence
~/.stack/credentials.json~/.stack/agents/<agent_id>.json
Network endpoints3
api.getstack.rungetstack.run127.0.0.1
Decision evidence
public snapshotAI called this Clean at 92.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The package exports dist/index.js as its entry point.
- The only lifecycle script is prepublishOnly, which cleans and builds the package.
- Agent enrollment sends a bearer token to the STACK API; the Ed25519 keypair is generated locally.
- Interactive browser authentication is gated on a TTY and can be disabled with STACK_AUTH_INTERACTIVE=false or CI.
Evidence against
- The SDK reads local STACK credentials and sends them in authentication flows.
- Authentication may open a browser using child_process.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
5 flaggeddist/browser-bootstrap.jsView file
•matchType = previous_version_dangerous_delta
matchedPackage = @getstackrun/sdk@0.17.0
matchedIdentity = npm:QGdldHN0YWNrcnVuL3Nkaw:0.17.0
similarity = 0.361
summary = stored previous version shares package body but lacks this dangerous source file
Critical
Previous Version Dangerous Delta
This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.
dist/browser-bootstrap.jsView on unpkg181async function openBrowser(url) {
L182: const { spawn } = await import('node:child_process');
L183: try {
High
Child Process
Package source references child process execution.
dist/browser-bootstrap.jsView on unpkg · L181dist/agent-auth.js#virtual:normalized:round1View file
73* Spawn a one-shot loopback HTTP server on a random free port, open
L74: * the dashboard /sdk-bootstrap page in the user"s browser, and resolve\n * with the enrollment ticket once the user approves (or reject on\n * deny / timeout). Used as the interact...
L75: * (or sk_live_* via STACK_API_KEY). No browser, no human-in-the-
Findings
1 Critical4 High2 Medium5 Low
CriticalPrevious Version Dangerous Deltadist/browser-bootstrap.js
HighChild Processdist/browser-bootstrap.js
HighCommand Output Exfiltrationdist/agent-auth.js#virtual:normalized:round1
HighTrigger Reachable Command Output Exfiltrationdist/agent-auth.js#virtual:normalized:round1
HighSemantic Analysis Limiteddist/agent-auth.js#virtual:normalized:round1
MediumNetwork
MediumEnvironment Vars
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @getstackrun/sdk@1.3.0.
See all versions of @getstackrun/sdk for other recorded verdicts.
- Review the evidence and your use of @getstackrun/sdk@1.3.0 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.