opencode-skills-collection@4.1.1
OpenSSF/OSV Malicious Advisory
imported 10h 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 package-owned agent extension setup with persistent skill writes and guarded cleanup, warranting a lifecycle warning under the supplied policy. No npm install hook or concrete malicious execution or exfiltration chain was established.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
OpenCode invokes the plugin setup or server callback.
Impact
Bundled instructions become available to the agent, and package-managed skill content is refreshed automatically without default risk exclusions.
Mechanism
The startup pipeline copies bundled skill folders, writes pointer instructions, and removes obsolete pointer directories using a suffix guard.
AI rationale
Source establishes automatic package-owned agent extension setup with persistent skill writes and guarded cleanup, warranting a lifecycle warning under the supplied policy. No npm install hook or concrete malicious execution or exfiltration chain was established.
Evidence
dist/index.jsdist/skill-pointer/index.jsdist/skill-pointer/vault-installer.jsdist/skill-pointer/pointer-generator.jsdist/skill-pointer/config-loader.js.config/opencode/skillsskill-librariesSKILL.md
Independent scan evidence
public snapshotAI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for AI warning decision
- OpenCode plugin setup automatically runs the skill installation pipeline targeting its active skills directory.
- The pipeline copies bundled skills into a persistent vault and writes active skill pointers.
- Pointer cleanup recursively removes obsolete directories matching the package's pointer suffix.
- Default filtering excludes no risk levels or skills.
- package.json has no preinstall, install, or postinstall hook.
Evidence against
- The inspected runtime contains no network requests, credential harvesting, or shell execution.
- Extension setup matches the package's OpenCode integration purpose; pointer cleanup has a suffix guard.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
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
Findings
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
Affected versions and remediation
This report applies to opencode-skills-collection@4.1.1.
See all versions of opencode-skills-collection for other recorded verdicts.
- Avoid installing opencode-skills-collection@4.1.1. 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: .
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