@mutmutco/claude-plugin@4.5.131
MMI workflow skills and org gates delivery.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe source establishes conditional credential forwarding to an unrestricted configurable destination, so a warning is warranted. The package has no install hook, the default endpoint is package-aligned, and the agent-path code is only a path check; the evidence does not support blocking.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
A user invokes mmi-cli whoami when no matching Hub session is cached and a GitHub token is available.
Impact
A redirected destination could receive the GitHub token. Source does not establish that the default Hub endpoint is malicious.
Mechanism
The CLI sends the token as a bearer credential to the selected Hub URL's authentication endpoint; MMI_HUB_URL can override the default destination.
AI rationale
The source establishes conditional credential forwarding to an unrestricted configurable destination, so a warning is warranted. The package has no install hook, the default endpoint is package-aligned, and the agent-path code is only a path check; the evidence does not support blocking.
Evidence
cli/dist/main.cjs
Network endpoints1
tqxxwzftic.execute-api.eu-central-1.amazonaws.com
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- GitHub credentials can come from environment variables or the local GitHub CLI token command.
- The Hub URL can be overridden through MMI_HUB_URL, and the code only removes a trailing slash from the selected URL.
- When no matching cached session exists, the CLI sends the GitHub token as a bearer credential to the selected Hub URL's authentication endpoint.
- The transfer is reachable through the explicitly invoked whoami command, which resolves the logged-in user.
- The package manifest has no lifecycle hooks; the cited agent-path code checks paths and does not mutate agent configuration.
- CLI telemetry sends the command name, version, CI status, and operating system to the Hub endpoint, with an opt-out.
Evidence against
- The built-in authentication destination is the product's Hub endpoint, and the credential exchange is limited to whoami.
- The required agent integration location concerns path classification, not agent configuration writes.
Behavioral surface
ChildProcessCryptoDynamicRequire
Source & flagged code
7 flagged · loading sourcecli/dist/main.cjsView file
39function globalDispatcher() {
L40: return globalThis[UNDICI_GLOBAL_DISPATCHER_SYMBOL];
L41: }
...
L80: try {
L81: stream.write("", () => resolve8());
L82: } catch {
...
L88: await Promise.race([
L89: Promise.all([flushStream(process.stdout), flushStream(process.stderr)]),
L90: new Promise((resolve8) => {
...
L140: CLI_EXIT_WATCHDOG_MS = (() => {
L141: const testOverride = Number(process.env.MMI_CLI_TEST_EXIT_WATCHDOG_MS);
L142: return process.env.NODE_ENV === "test" && Number.isFinite(testOverride) && testOverride >= 25 ? testOverride : 1e4;
Critical
Credential Exfiltration
Source appears to send environment or credential material to an external endpoint.
cli/dist/main.cjsView on unpkg · L39•matchType = previous_version_dangerous_delta
matchedPackage = @mutmutco/claude-plugin@4.5.84
matchedIdentity = npm:QG11dG11dGNvL2NsYXVkZS1wbHVnaW4:4.5.84
similarity = 1.000
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.
cli/dist/main.cjsView on unpkg1115if (process.platform === "win32") {
L1116: (0, import_node_child_process2.execFileSync)("taskkill", ["/PID", String(pid), "/T", "/F"], { stdio: "ignore", windowsHide: true });
L1117: } else {
Findings
2 Critical3 High5 Medium4 Low
CriticalCredential Exfiltrationcli/dist/main.cjs
CriticalPrevious Version Dangerous Deltacli/dist/main.cjs
HighChild Processcli/dist/main.cjs
HighCommand Output Exfiltrationcli/dist/main.cjs
HighSemantic Analysis Limitedcli/dist/main.cjs
MediumDynamic Requirecli/dist/index.cjs
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperbin/mmi-cli.cmd
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to @mutmutco/claude-plugin@4.5.131.
See all versions of @mutmutco/claude-plugin for other recorded verdicts.
- Review the evidence and your use of @mutmutco/claude-plugin@4.5.131 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.