registry / resend-cli / 2.26.0
resend-cli@2.26.0
The official CLI for Resend
AI Security Review
scanned 19d ago · by lpm-firewall-aiThe published entrypoint has no install lifecycle hook. The flagged subprocess and network behavior is consistent with CLI operation and usage telemetry; the inspected telemetry payload contains usage metadata rather than credentials or application data.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A user invokes a CLI command and it completes.
Impact
The inspected telemetry does not include credentials or application records, and no malicious behavior was established.
Mechanism
The CLI queues command and environment metadata for a POST to the telemetry collector; the source provides environment-variable opt-outs.
AI rationale
The published entrypoint has no install lifecycle hook. The flagged subprocess and network behavior is consistent with CLI operation and usage telemetry; the inspected telemetry payload contains usage metadata rather than credentials or application data.
Evidence
dist/cli.cjs
Network endpoints1
us.i.posthog.com/capture/
Decision evidence
public snapshotAI called this Clean at 95.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- package.json exposes dist/cli.cjs as the CLI and lists build and prepack scripts, with no install lifecycle hook.
- After a command completes, the CLI records the command name, CLI and Node versions, operating system, interactivity, install method, and flag names.
- Telemetry is disabled when DO_NOT_TRACK=1 or RESEND_TELEMETRY_DISABLED=1.
- The telemetry flush sends its JSON payload to us.i.posthog.com; the inspected payload contains CLI usage metadata, not credentials or application records.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsMinifiedTelemetryUrlStrings
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 Zu=Object.create;var Vi=Object.defineProperty;var ep=Object.getOwnPropertyDescriptor;var tp=Object.getOwnPropertyNames;var op=Object.getPrototypeOf,ip=Object.proto...
L3: `)}displayWidth(t){return yn(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]}?)`:""}Cn.suggestSimilar=mp});var kn=je(mr=>{var up=require("node:events").EventEmitter,sr=require("node:child_process"),lt=require("node:path"),No=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 ${i[0]}?)`:""}Cn.suggestSimilar=mp});var kn=je(mr=>{var up=require("node:events").EventEmitter,sr=require("node:child_process"),lt=require("node:path"),No=require("no...
L15: - specify the name in Command constructor or using .name()`);return o=o||{},o.isDefault&&(this._defaultCommandName=t._name),(o.noHelp||o.hidden)&&(t._hidden=!0),this._registerComma...
...
L26: Expecting one of '${i.join("', '")}'`);let r=`${t}Help`;return this.on(r,n=>{let a;typeof o=="function"?a=o({error:n.error,command:n.command}):a=o,a&&n.write(`${a}
L27: `)}),this}_outputHelpIfRequested(t){let o=this._getHelpOption();o&&t.find(r=>o.is(r))&&(this.outputHelp(),this._exit(0,"commander.helpDisplayed","(outputHelp)"))}};function Sn(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@2.26.0.
See all versions of resend-cli for other recorded verdicts.
- Review the evidence and your use of resend-cli@2.26.0 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.