opencode-skills-collection@4.1.0
OpenSSF/OSV Malicious Advisory
imported 8h ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-18193 confirms this npm version as malicious.
Advisory
MAL-2026-18193
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in opencode-skills-collection (npm)
Details
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
References
Independent LPM AI assessment
SuspiciousIndependent AI assessment: suspicious. LPM AI assessed this version as suspicious; the assessments disagree.
Source establishes automatic first-party agent extension setup, which the supplied policy classifies as a warning. No unconsented npm install-hook mutation or other concrete malicious behavior was established.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Loading the plugin through OpenCode setup or its server entrypoint.
Impact
Changes the instructions available to the agent and replaces package-managed extension content.
Mechanism
Copies bundled skill directories, writes generated skill pointers, and removes obsolete generated pointer directories.
AI rationale
Source establishes automatic first-party agent extension setup, which the supplied policy classifies as a warning. No unconsented npm install-hook mutation or other concrete malicious behavior was established.
Evidence
dist/index.jsdist/skill-pointer/index.jsdist/skill-pointer/vault-installer.jsdist/skill-pointer/pointer-generator.js.config/opencode/skills
Independent scan evidence
public snapshotAI called this Suspicious at 92.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for AI warning decision
- OpenCode plugin setup automatically runs the skill installation pipeline.
- The pipeline copies bundled skills into its vault and generates active skill files.
- Generated pointers are written into the OpenCode skills directory; obsolete pointer directories are recursively removed.
- package.json defines no preinstall, install, or postinstall hook.
Evidence against
- The observed configuration changes implement this package's OpenCode extension purpose.
- Inspected authentication examples target Apify, Hugging Face, or a local Electron daemon; no credential exfiltration was established.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
WildcardDependency
Source & flagged code
13 flagged · loading sourcebundled-skills/developer-signup-flow/SKILL.mdView file
165patternName = stripe_test_secret
severity = high
line = 165
High
High Secret
Package contains a high-severity secret pattern.
bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165165patternName = stripe_test_secret
severity = high
line = 165
High
Secret Pattern
Stripe test secret key in bundled-skills/developer-signup-flow/SKILL.md
bundled-skills/developer-signup-flow/SKILL.mdView on unpkg · L165bundled-skills/playwright-skill/run.jsView file
14const path = require('path');
L15: const { execSync } = require('child_process');
L16: const sanitizeFilename = require('sanitize-filename');
High
Child Process
Package source references child process execution.
bundled-skills/playwright-skill/run.jsView on unpkg · L1412L13: const fs = require('fs');
L14: const path = require('path');
Medium
Dynamic Require
Package source references dynamic require/import behavior.
bundled-skills/playwright-skill/run.jsView on unpkg · L12bundled-skills/electron-drive-skill/scripts/drive.mjsView file
133console.log(`Building (${config.build})...`)
L134: const built = spawnSync(config.build, { cwd: PROJECT_ROOT, stdio: 'inherit', shell: true })
L135: if (built.status !== 0) fail(`'${config.build}' failed.`)
High
Shell
Package source references shell execution.
bundled-skills/electron-drive-skill/scripts/drive.mjsView on unpkg · L1337Cross-file remote execution chain: bundled-skills/electron-drive-skill/scripts/drive.mjs spawns bundled-skills/electron-drive-skill/scripts/daemon.mjs; helper contains network access plus dynamic code execution.
L7: */
L8: import { spawn, spawnSync } from 'node:child_process'
L9: import { existsSync, mkdirSync, openSync, readFileSync, rmSync, statSync } from 'node:fs'
L10: import http from 'node:http'
L11: import path from 'node:path'
...
L73: try {
L74: const parsed = JSON.parse(data)
L75: if (parsed.ok) resolve(parsed.result)
...
L83: request.on('error', reject)
L84: request.end(body)
L85: })
...
L111: if (!existsSync(resolved) || !statSync(resolved).isDirectory()) return resolved
High
Cross File Remote Execution Context
Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.
bundled-skills/electron-drive-skill/scripts/drive.mjsView on unpkg · L7bundled-skills/apify-content-analytics/reference/scripts/run_actor.jsView file
98const apiActorId = actorId.replace('/', '~');
L99: const url = `https://api.apify.com/v2/acts/${apiActorId}/runs?token=${encodeURIComponent(token)}`;
L100:
...
L102: try {
L103: data = JSON.parse(inputJson);
L104: } catch (e) {
...
L114: },
L115: body: JSON.stringify(data),
L116: });
...
L321: // Check for APIFY_TOKEN
L322: const token = process.env.APIFY_TOKEN;
L323: if (!token) {
Critical
Hardcoded Runtime Data Exfiltration
Source sends credentials or rich application records to a package-controlled external receiver enabled by default.
bundled-skills/apify-content-analytics/reference/scripts/run_actor.jsView on unpkg · L98bundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsxView file
39L40: const token = process.env.HF_TOKEN;
L41: const headers: Record<string, string> = token
...
L44:
L45: const url = `https://huggingface.co/api/models?limit=${limit}`;
L46:
...
L54:
L55: const text = await res.text();
L56: process.stdout.write(text);
L57: })();
High
Credential Exfiltration
Source combines credential-like environment material and outbound requests; review data flow before blocking.
bundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsxView on unpkg · L39bundled-skills/gemini-deep-research/scripts/research.pyView file
•path = bundled-skills/gemini-deep-research/scripts/research.py
kind = build_helper
sizeBytes = 24204
magicHex = [redacted]
Medium
Ships Build Helper
Package ships non-JavaScript build or shell helper files.
bundled-skills/gemini-deep-research/scripts/research.pyView on unpkgbundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gzView file
•path = bundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gz
kind = compressed_blob
sizeBytes = 19967
magicHex = [redacted]
Medium
Ships Compressed Blob
Package ships compressed or archive-like blobs.
bundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gzView on unpkgbundled-skills/theme-factory/theme-showcase.pdfView file
•path = bundled-skills/theme-factory/theme-showcase.pdf
kind = high_entropy_blob
sizeBytes = 124310
magicHex = [redacted]
High
Ships High Entropy Blob
Package ships high-entropy non-source blobs.
bundled-skills/theme-factory/theme-showcase.pdfView on unpkgbundled-skills/fedora-hyprland-installer/tests/test-scripts.shView file
•path = bundled-skills/fedora-hyprland-installer/tests/test-scripts.sh
kind = payload_in_excluded_dir
sizeBytes = 1740
magicHex = [redacted]
High
Payload In Excluded Dir
Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.
bundled-skills/fedora-hyprland-installer/tests/test-scripts.shView on unpkgbundled-skills/go-in-depth/scripts/workflow-script.jsView file
•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2
High
Semantic Analysis Limited
A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.
bundled-skills/go-in-depth/scripts/workflow-script.jsView on unpkgFindings
1 Critical9 High7 Medium5 Low
CriticalHardcoded Runtime Data Exfiltrationbundled-skills/apify-content-analytics/reference/scripts/run_actor.js
HighHigh Secretbundled-skills/developer-signup-flow/SKILL.md
HighChild Processbundled-skills/playwright-skill/run.js
HighShellbundled-skills/electron-drive-skill/scripts/drive.mjs
HighCredential Exfiltrationbundled-skills/huggingface-tool-builder/references/baseline_hf_api.tsx
HighCross File Remote Execution Contextbundled-skills/electron-drive-skill/scripts/drive.mjs
HighShips High Entropy Blobbundled-skills/theme-factory/theme-showcase.pdf
HighPayload In Excluded Dirbundled-skills/fedora-hyprland-installer/tests/test-scripts.sh
HighSemantic Analysis Limitedbundled-skills/go-in-depth/scripts/workflow-script.js
HighSecret Patternbundled-skills/developer-signup-flow/SKILL.md
MediumDynamic Requirebundled-skills/playwright-skill/run.js
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperbundled-skills/gemini-deep-research/scripts/research.py
MediumShips Compressed Blobbundled-skills/web-artifacts-builder/scripts/shadcn-components.tar.gz
MediumStructural Risk Force Deep Review
MediumWildcard Dependency
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to opencode-skills-collection@4.1.0.
See all versions of opencode-skills-collection for other recorded verdicts.
- Avoid installing opencode-skills-collection@4.1.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.