@mutmutco/codex-plugin@4.5.149
MMI workflow skills and org gates delivery.
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe source supports a conditional credential-exposure risk because an environment override can redirect the GitHub token exchange to an unrestricted origin. The default is the package Hub, the agent-config match is a path classifier, and package.json has no lifecycle scripts; the evidence does not support blocking the release.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
A user runs a Hub-backed command while MMI_HUB_URL points to a custom origin.
Impact
The configured recipient can receive the GitHub token, creating conditional credential exposure.
Mechanism
The CLI obtains a GitHub token from the environment or GitHub CLI and sends it as bearer authorization to that origin's session endpoint without an origin allowlist in the inspected path.
AI rationale
The source supports a conditional credential-exposure risk because an environment override can redirect the GitHub token exchange to an unrestricted origin. The default is the package Hub, the agent-config match is a path classifier, and package.json has no lifecycle scripts; the evidence does not support blocking the release.
Evidence
cli/dist/main.cjs
Network endpoints1
tqxxwzftic.execute-api.eu-central-1.amazonaws.com
Decision evidence
public snapshotAI called this Suspicious at 87.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The manifest declares no lifecycle scripts, so the token exchange is not triggered by package installation.
- The CLI reads a GitHub token from environment variables or the GitHub CLI.
- Hub authentication sends that token as a bearer credential to the configured Hub session endpoint. MMI_HUB_URL can replace the package's default Hub URL, and the inspected exchange has no origin allowlist.
- Hub client wrappers pass the token into this exchange for Hub-backed commands; whoami also calls the session helper.
- The reported Codex path match is a repository path classifier used to identify uncommittable agent-config paths, not a configuration write.
- Separate CLI telemetry is triggered by a CLI command and sends command, version, CI status, and operating system metadata to the default Hub.
Evidence against
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetwork
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/codex-plugin@4.5.84
matchedIdentity = npm:QG11dG11dGNvL2NvZGV4LXBsdWdpbg: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 unpkg1117if (process.platform === "win32") {
L1118: (0, import_node_child_process2.execFileSync)("taskkill", ["/PID", String(pid), "/T", "/F"], { stdio: "ignore", windowsHide: true });
L1119: } 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/codex-plugin@4.5.149.
See all versions of @mutmutco/codex-plugin for other recorded verdicts.
- Review the evidence and your use of @mutmutco/codex-plugin@4.5.149 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.