registry / resend-cli / 2.26.2
resend-cli@2.26.2
The official CLI for Resend
AI Security Review
scanned 7d ago · by lpm-firewall-aiSource inspection found no install hook or confirmed malicious behavior. The flagged network and process behavior implements disclosed, opt-out CLI usage telemetry, and the inspected dependency entrypoints are prompt and command-parsing libraries.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A CLI command completes.
Impact
The inspected flow does not send saved credentials or command output; no attack impact was established.
Mechanism
The command handler records command and environment metadata in a local telemetry file, then starts a detached process to send it.
AI rationale
Source inspection found no install hook or confirmed malicious behavior. The flagged network and process behavior implements disclosed, opt-out CLI usage telemetry, and the inspected dependency entrypoints are prompt and command-parsing libraries.
Evidence
dist/cli.cjs
Network endpoints1
us.i.posthog.com/capture/
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The package maps its executable to the CLI and has no install lifecycle hook. The inspected dependency entrypoints provide prompts and command parsing.
- The CLI sends a bounded usage event to Resend’s PostHog project when a CLI command completes. Its payload contains CLI and environment metadata, not saved credentials or command output; telemetry can be disabled.
Evidence against
- Telemetry is enabled by default unless opted out and is flushed by a detached child process.
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 op=Object.create;var zi=Object.defineProperty;var ip=Object.getOwnPropertyDescriptor;var rp=Object.getOwnPropertyNames;var np=Object.getPrototypeOf,ap=Object.proto...
L3: `)}displayWidth(t){return Cn(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]}?)`:""}vn.suggestSimilar=fp});var Fn=Pe(ur=>{var hp=require("node:events").EventEmitter,lr=require("node:child_process"),dt=require("node:path"),Mo=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 ${i[0]}?)`:""}vn.suggestSimilar=fp});var Fn=Pe(ur=>{var hp=require("node:events").EventEmitter,lr=require("node:child_process"),dt=require("node:path"),Mo=require("no...
L15: - specify the name in Command constructor or using .name()`);return o=o||{},o.isDefault&&(this._defaultCommandName=t._name),(o.noHelp||o.hidden)&&(t._hidden=!0),this._registerComma...
...
L26: Expecting one of '${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 Kn(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@2.26.2.
See all versions of resend-cli for other recorded verdicts.
- Review the evidence and your use of resend-cli@2.26.2 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.