@mutmutco/claude-plugin@4.5.112
MMI workflow skills and org gates delivery.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThis warrants a warning because a custom MMI_HUB_URL can receive an existing GitHub token during session exchange. The default points to the product Hub, and the manifest has no install lifecycle hook, so the inspected behavior does not support blocking the package as malicious.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
A Hub-authenticated CLI command runs with a custom MMI_HUB_URL, no MMI_HUB_TOKEN override, and no valid cached Hub session.
Impact
The configured endpoint may receive a GitHub token with access determined by that token's permissions.
Mechanism
The CLI sends the GitHub token as a bearer credential to the selected endpoint's /auth/session route, without restricting the destination host.
AI rationale
This warrants a warning because a custom MMI_HUB_URL can receive an existing GitHub token during session exchange. The default points to the product Hub, and the manifest has no install lifecycle hook, so the inspected behavior does not support blocking the package as malicious.
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
- The flagged agent directories are exempted from git-clean blocking only when untracked; this helper does not configure or write agent settings.
- The package manifest defines no lifecycle scripts.
- GitHub credentials can come from environment variables or the local gh authentication command.
- MMI_HUB_URL overrides the Hub destination, and the source only strips a trailing slash; its default is the product Hub endpoint.
- When no Hub token override or valid cached session is available, Hub authentication sends the existing GitHub token as a bearer token to the selected endpoint. Hub API helpers and the whoami command reach this flow.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
NoLicense
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@4.5.112.
See all versions of @mutmutco/claude-plugin for other recorded verdicts.
- Review the evidence and your use of @mutmutco/claude-plugin@4.5.112 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.