registry / resend-cli / 2.15.0
resend-cli@2.15.0
The official CLI for Resend
AI Security Review
scanned 2mo ago · by lpm-firewall-aiStatic hints conflate legitimate CLI telemetry and child-process use with exfiltration. Source inspection shows no lifecycle execution and no flow of API credentials or command output to the telemetry endpoint.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Running a resend CLI command after installation.
Impact
No confirmed credential exfiltration, remote code execution, persistence, or destructive behavior was found.
Mechanism
The CLI records limited command metadata and posts a cli.used event unless the telemetry opt-out environment variable is set.
AI rationale
Static hints conflate legitimate CLI telemetry and child-process use with exfiltration. Source inspection shows no lifecycle execution and no flow of API credentials or command output to the telemetry endpoint.
Network endpoints1
us.i.posthog.com/capture/
Decision evidence
public snapshotAI called this Clean at 91.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The manifest exposes a user-invoked resend executable and has no install lifecycle hook.
- The CLI's telemetry payload contains command metadata, version, operating system, Node version, interactivity, install method, and explicitly supplied flag names; it does not include API keys, command output, or credential contents.
- Telemetry can be disabled with RESEND_TELEMETRY_DISABLED=1 and is sent as a constrained cli.used event to PostHog.
- The telemetry send is reached after a CLI command completes, not during package installation.
Evidence against
- The CLI performs default anonymous usage telemetry to us.i.posthog.com.
- The bundle uses child-process APIs for credential-store integration and to detach the telemetry flush helper.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsMinified
Source & flagged code
10 flaggeddist/cli.cjsView file
1Source sends the broad process environment to a literal external destination.
L1: #!/usr/bin/env node
L2: "use strict";var hu=Object.create;var Ui=Object.defineProperty;var Au=Object.getOwnPropertyDescriptor;var bu=Object.getOwnPropertyNames;var Cu=Object.getPrototypeOf,yu=Object.proto...
L3: `)}displayWidth(t){return Nr(t).length}styleTitle(t){return t}styleUsage(t){return t.split(" ").map(o=>o==="[options]"?this.styleOptionText(o):o==="[command]"?this.styleSubcommandT...
...
L13: (Did you mean one of ${i.join(", ")}?)`:i.length===1?`
L14: (Did you mean ${i[0]}?)`:""}Mr.suggestSimilar=ku});var zr=ke(Ii=>{var Ru=require("node:events").EventEmitter,Bi=require("node:child_process"),Xe=require("node:path"),yo=require("no...
L15: - specify the name in Command constructor or using .name()`);ret
Critical
Hardcoded Runtime Data Exfiltration
Source sends credentials or rich application records to a package-controlled external receiver enabled by default.
dist/cli.cjsView on unpkg · L113(Did you mean one of ${i.join(", ")}?)`:i.length===1?`
L14: (Did you mean ${i[0]}?)`:""}Mr.suggestSimilar=ku});var zr=ke(Ii=>{var Ru=require("node:events").EventEmitter,Bi=require("node:child_process"),Xe=require("node:path"),yo=require("no...
L15: - specify the name in Command constructor or using .name()`);return o=o||{},o.isDefault&&(this._defaultCommandName=t._name),(o.noHelp||o.hidden)&&(t._hidden=!0),this._registerComma...
...
L26: Expecting one of '${i.join("', '")}'`);let r=`${t}Help`;return this.on(r,n=>{let s;typeof o=="function"?s=o({error:n.error,command:n.command}):s=o,s&&n.write(`${s}
L27: `)}),this}_outputHelpIfRequested(t){let o=this._getHelpOption();o&&t.find(r=>o.is(r))&&(this.outputHelp(),this._exit(0,"commander.helpDisplayed","(outputHelp)"))}};function Vr(e){r...
Findings
3 Critical5 High5 Medium5 Low
CriticalHardcoded Runtime Data Exfiltrationdist/cli.cjs
CriticalCommand Output Exfiltrationdist/cli.cjs
CriticalTrigger Reachable Dangerous Capabilitydist/cli.cjs
HighChild Processdist/cli.cjs
HighSame File Env Network Executiondist/cli.cjs
HighSandbox Evasion Gated Capabilitydist/cli.cjs
HighTrigger Reachable Command Output Exfiltrationdist/cli.cjs
HighTrigger Reachable Persistencedist/cli.cjs
MediumDynamic Requiredist/cli.cjs
MediumNetwork
MediumEnvironment Vars
MediumInstall Persistencedist/cli.cjs
Medium
Affected versions and remediation
This report applies to resend-cli@2.15.0.
See all versions of resend-cli for other recorded verdicts.
- Review the evidence and your use of resend-cli@2.15.0 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.