---
canonical: "https://firewall.lpm.dev/npm/@cotal-ai/connector-opencode"
markdown: "https://firewall.lpm.dev/npm/@cotal-ai/connector-opencode/v/0.42.0.md"
package: "@cotal-ai/connector-opencode"
report_status: "published"
title: "@cotal-ai/connector-opencode@0.42.0 npm security report"
verdict: "suspicious"
version: "0.42.0"
---

# @cotal-ai/connector-opencode@0.42.0 npm security report

> **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document.

## Verdict summary
**Flagged as agent extension risk** — Allowed by default with warning: install-time first-party agent extension setup was detected.

- **Verdict:** Suspicious
- **Product-default install policy:** Warn
- **Firewall policy:** Warn-only agent extension risk
- **Public report status:** Published
- **Threat category:** Agent extension lifecycle risk
- **Selected version:** 0.42.0
- **Selected version is latest:** No
- **Analysis source:** AI Security Review (lpm-firewall-ai)

This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions.

AI assessment: suspicious; recommendation: downgrade to warn. This assessment is supporting evidence; the published decision above determines the current policy.

LPM treats this as warn-only first-party agent extension lifecycle risk. At runtime, the connector launches a local OpenCode service with a bundled plugin and an allow-permission configuration. No install-time attack or external endpoint was confirmed.

## Latest scan
- **Scanner version:** rust-scanner-worker-schema-1
- **Recorded final verdict:** Suspicious
- **Recorded analysis confidence:** 78.0%
- **Started:** 2026-09-05T01:54:49.576Z
- **Finished:** 2026-09-05T01:56:47.496Z
- **Download time:** 261 ms
- **Static scan time:** 4151 ms
- **AI review time:** 113508 ms
- **Total time:** 117920 ms

The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs.

## Security analysis

### Published attack-surface review

- **Summary:** At runtime, the connector launches a local OpenCode service with a bundled plugin and an allow-permission configuration. No install-time attack or external endpoint was confirmed.

- **Trigger:** A Cotal-managed OpenCode connector launch.

- **Impact:** The bundled plugin can receive the permissions granted to the launched OpenCode session.

- **Evidence paths:** dist/index.js, dist/serve.js

- **Review source:** ai\_review

- **Reviewed:** 2026-09-05T01:56:47.496Z

### AI review details

- **Review stage:** source\_first\_review

- **Mechanism:** Runtime injection of a permissive OpenCode plugin configuration.

- **Rationale:** This is not concrete malware, but it creates a permissive first-party agent extension during runtime. The broad OpenCode permission warrants a warning under the extension lifecycle policy.

- **Files touched:** dist/index.js, dist/serve.js, dist/plugin.bundle.js

- **Network endpoints:** 127.0.0.1

### Review decision

- **Verdict:** Suspicious

- **Confidence:** 78.0%

- **Recommended action:** downgrade\_to\_warn

- **Intent class:** Dangerous Capability

- **False-positive risk:** Medium

- **Evidence for warning:** The manifest imports the connector runtime entry when the package is used., The runtime creates an OpenCode configuration with unrestricted permission and loads its bundled plugin., The launch shim starts OpenCode on loopback and writes state under the selected workspace root.

- **Evidence against:** There are no npm preinstall, install, or postinstall hooks., The only observed fetch targets the locally constructed 127.0.0.1 service URL., Child processes use fixed OpenCode arguments; no shell command or remote payload execution was found.

## Affected versions and remediation

This report applies to @cotal-ai/connector-opencode@0.42.0.

- Review the evidence and your use of @cotal-ai/connector-opencode@0.42.0 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.

## Public findings

### 1. Low: Scripts Present
- **Category:** Manifest
- **Confidence:** 100.0%

Package declares npm scripts.

### 2. High: Child Process
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** dist/serve.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/serve.js>)

Package source references child process execution.

Public source snippet (untrusted):

```javascript
L1: // src/serve.ts
L2: import { execFileSync, spawn } from "node:child_process";
L3: import { createServer } from "node:net";
```

### 3. High: Shell
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** dist/serve.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/serve.js>)

Package source references shell execution.

Public source snippet (untrusted):

```javascript
L45: if (process.platform === "win32") {
L46: return execFileSync("powershell.exe", [
L47: "-NoProfile",
```

### 4. Medium: Dynamic Require
- **Category:** Source
- **Confidence:** 75.0%

Package source references dynamic require/import behavior.

### 5. Medium: Network
- **Category:** Source
- **Confidence:** 75.0%

Package source references network APIs.

### 6. Medium: Environment Vars
- **Category:** Source
- **Confidence:** 75.0%

Package source references environment variables.

### 7. Low: Filesystem
- **Category:** Source
- **Confidence:** 70.0%

Package source references filesystem APIs.

### 8. High: Same File Env Network Execution
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** dist/serve.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/serve.js>)

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

Public source snippet (untrusted):

```javascript
L1: // src/serve.ts
L2: import { execFileSync, spawn } from "node:child_process";
L3: import { createServer } from "node:net";
L4: import { once } from "node:events";
...
L8: function resolveOpencodeBin() {
L9: const override = process.env.COTAL_OPENCODE_BIN?.trim() || process.env.COTAL_OPENCODE_RESOLVED_BIN?.trim();
L10: if (override) return override;
```

### 9. Critical: Reverse Shell
- **Category:** Source
- **Confidence:** 92.0%
- **Path:** dist/serve.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/serve.js>)

Source matches reverse-shell style process and socket wiring.

Public source snippet (untrusted):

```javascript
L1: // src/serve.ts
L2: import { execFileSync, spawn } from "node:child_process";
L3: import { createServer } from "node:net";
L4: import { once } from "node:events";
...
L8: function resolveOpencodeBin() {
L9: const override = process.env.COTAL_OPENCODE_BIN?.trim() || process.env.COTAL_OPENCODE_RESOLVED_BIN?.trim();
L10: if (override) return override;
L11: if (process.platform !== "win32") return "opencode";
L12: for (const dir of (process.env.PATH ?? "").split(delimiter)) {
...
L31: async function killServe(serve) {
L32: if (serve.exitCode !== null || serve.signalCode !== null) return;
L33: serve.kill("SIGTERM");
```

### 10. High: Sandbox Evasion Gated Capability
- **Category:** Source
- **Confidence:** 84.0%
- **Path:** dist/serve.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/serve.js>)

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

Public source snippet (untrusted):

```javascript
L1: // src/serve.ts
L2: import { execFileSync, spawn } from "node:child_process";
L3: import { createServer } from "node:net";
L4: import { once } from "node:events";
...
L8: function resolveOpencodeBin() {
L9: const override = process.env.COTAL_OPENCODE_BIN?.trim() || process.env.COTAL_OPENCODE_RESOLVED_BIN?.trim();
L10: if (override) return override;
L11: if (process.platform !== "win32") return "opencode";
L12: for (const dir of (process.env.PATH ?? "").split(delimiter)) {
...
L31: async function killServe(serve) {
L32: if (serve.exitCode !== null || serve.signalCode !== null) return;
L33: serve.kill("SIGTERM");
```

### 11. High: Cross File Remote Execution Context
- **Category:** Source
- **Confidence:** 72.0%
- **Path:** dist/index.js
- **Public source:** [View source](<https://unpkg.com/@cotal-ai/connector-opencode@0.42.0/dist/index.js>)

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

Public source snippet (untrusted):

```javascript
Cross-file remote execution chain: dist/index.js spawns dist/plugin.bundle.js; helper contains network access plus dynamic code execution.
L7: // src/extension.ts
L8: import { execFileSync } from "node:child_process";
L9: import { fileURLToPath } from "node:url";
...
L24: import { createHash, randomBytes } from "node:crypto";
L25: function controlEndpoint(space, name, token = randomBytes(32).toString("base64url")) {
L26: const id = createHash("sha256").update(`${space}\0${name}\0${process.pid}\0${token}`).digest("base64url").slice(0, 32);
L27: const path = process.platform === "win32" ? `\\\\.\\pipe\\cotal-${id}` : join(tmpdir(), `cotal-${id}.sock`);
L28: return { path, token };
...
L110: const sourceKey = /* @__PURE__ */ new Map();
L111: for (const k of Object.keys(process.env))
L112: sou
```

### 12. Low: High Entropy Strings
- **Category:** Supply Chain
- **Confidence:** 55.0%

Package source contains high-entropy string patterns.

### 13. Low: Url Strings
- **Category:** Supply Chain
- **Confidence:** 65.0%

Package source contains URL literals.

### 14. Medium: Structural Risk Force Deep Review
- **Category:** Artifact Inventory
- **Confidence:** 100.0%

Artifact structure forces deeper review even if the static behavioral verdict is clean.

## Dependencies and install lifecycle
- **Lifecycle scripts present:** No

- **Dependencies:** 0
- **Optional dependencies:** 0
- **Peer dependencies:** 1
- **Development dependencies:** 6
- **Published dependency-graph edges:** 1

### Published dependency entries
- @cotal-ai/core \>=0.1.0 (PeerDependency)

## Package metadata
- **Package:** @cotal-ai/connector-opencode
- **Ecosystem:** npm
- **Version:** 0.42.0
- **License:** Apache-2.0
- **Version published:** 2026-09-05T01:52:56.569Z
- **Package first seen:** 2026-06-30T23:14:39.063Z
- **Package last seen:** 2026-10-07T23:54:22.887Z
- **Known versions:** 62
- **Latest version:** 0.73.0
- **Appeal under review:** No
- **Description:** Cotal connector for OpenCode: a native in-process plugin that joins a session to the mesh.
- **Maintainers:** cotal-ai
- **Artifact files:** 22
- **Artifact unpacked size:** 5,146,032 bytes
- **Artifact signatures:** 1
- **Attestations:** Yes
- **Provenance:** https://slsa.dev/provenance/v1

## References
- [HTML security report](<https://firewall.lpm.dev/npm/@cotal-ai/connector-opencode/v/0.42.0>)
- [Repository](<https://github.com/Cotal-AI/Cotal>)