@mutmutco/claude-plugin@4.5.114
MMI workflow skills and org gates delivery.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe manifest has no lifecycle hook, and the flagged agent integration location is only part of a path classifier. However, Hub authentication forwards an existing GitHub token to an unrestricted MMI_HUB_URL override, leaving a concrete conditional credential exposure risk.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
A CLI operation requiring Hub authentication runs with MMI_HUB_URL set and no valid cached Hub session for that endpoint and token.
Impact
A custom endpoint can receive the GitHub token, exposing it to that endpoint’s operator.
Mechanism
The CLI reads a GitHub token from environment variables or gh auth token and posts it as a bearer credential to the configured endpoint’s /auth/session route.
AI rationale
The manifest has no lifecycle hook, and the flagged agent integration location is only part of a path classifier. However, Hub authentication forwards an existing GitHub token to an unrestricted MMI_HUB_URL override, leaving a concrete conditional credential exposure risk.
Evidence
cli/dist/main.cjs
Network endpoints1
tqxxwzftic.execute-api.eu-central-1.amazonaws.com
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json declares no lifecycle scripts.
- The CLI lets MMI_HUB_URL override its default Hub endpoint.
- GitHub credentials can come from environment variables or gh auth token.
- On a cache miss, Hub authentication posts the GitHub token as a bearer credential to the selected endpoint’s /auth/session route.
- Hub API callers invoke this authentication helper; the selected endpoint has no destination allowlist.
- The flagged agent path match is part of a path classifier, not an agent settings write.
Evidence against
- The default Hub endpoint is fixed in the CLI, and the credential exchange is used to obtain a Hub session.
- The manifest has no install hook, and the inspected code does not establish credential misuse by the default endpoint.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStrings
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("", () => resolve7());
L82: } catch {
...
L88: await Promise.race([
L89: Promise.all([flushStream(process.stdout), flushStream(process.stderr)]),
L90: new Promise((resolve7) => {
...
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 unpkg1113if (process.platform === "win32") {
L1114: (0, import_node_child_process2.execFileSync)("taskkill", ["/PID", String(pid), "/T", "/F"], { stdio: "ignore", windowsHide: true });
L1115: } 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@4.5.114.
See all versions of @mutmutco/claude-plugin for other recorded verdicts.
- Review the evidence and your use of @mutmutco/claude-plugin@4.5.114 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.