registry / @siwatfa/yorn / 1.0.23

@siwatfa/yorn@1.0.23

OSV Malicious Advisory

scanned 4h ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-14102 confirms this npm version as malicious. The package was found to contain malicious code or consuming dependency that contains malicious code

Advisory

MAL-2026-14102

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in @siwatfa/yorn (npm)

Details

The package was found to contain malicious code or consuming dependency that contains malicious code ## Source: ghsa-malware (dc765ce6cbae92d77218173fda23eca5505d5dc8342010b79f87ad721aac882a) 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.

Decision reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

References

OSV advisory ADVISORY PACKAGE PACKAGE PACKAGE PACKAGE PACKAGE PACKAGE

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessDynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 1.81 MB of source, external domains: 127.0.0.1, accounts.google.com, ai-gateway.vercel.sh, api.ant-ling.com, api.anthropic.com, api.cerebras.ai, api.cloudflare.com, api.deepseek.com, api.fireworks.ai, api.groq.com, api.individual.githubcopilot.com, api.kimi.com, api.minimax.io, api.minimaxi.com, api.mistral.ai, api.moonshot.ai, api.moonshot.cn, api.openai.com, api.search.brave.com, api.tavily.com, api.together.ai, api.x.ai, api.xiaomimimo.com, api.z.ai, bedrock-runtime.eu-central-1.amazonaws.com, bedrock-runtime.us-east-1.amazonaws.com, chatgpt.com, claude.ai, cli.github.com, cloud.google.com, cloudcode-pa.googleapis.com, customsearch.googleapis.com, gateway.ai.cloudflare.com, generativelanguage.googleapis.com, github.com, google.serper.dev, huggingface.co, inference.baseten.co, integrate.api.nvidia.com, oauth2.googleapis.com, open.bigmodel.cn, opencode.ai, openrouter.ai, pi.dev, platform.claude.com, raw.githubusercontent.com, registry.npmjs.org, router.huggingface.co, token-plan-ams.xiaomimimo.com, token-plan-cn.xiaomimimo.com

Source & flagged code

11 flagged

dist/cli.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @siwatfa/yorn@1.0.4 matchedIdentity = npm:QHNpd2F0ZmEveW9ybg:1.0.4 similarity = 0.667 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.

dist/cli.jsView on unpkg

High

Child Process

Package source references child process execution.

dist/cli.jsView on unpkg · L2

High

Same File Env Network Execution

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

dist/cli.jsView on unpkg · L2

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/cli.js: var y6=Object.defineProperty;var b6=(n=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(n,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):n)(function(n){if(typeof require<"u"... `)}function gB(n,e){let t=Math.min(n.length,e.length),i=0;for(;i<t&&n[i]===e[i];)i++;return i}function GM(n,e,t,i){let o=hB(e),r=Rc(o),s=Rc(QM(n.content)),a=r,l=0,c=0,p=t?.sessionI... --api-key <key> API key (defaults to env vars) # Print a provider API key for an external client ANTHROPIC_API_KEY - Anthropic Claude API key ANTHROPIC_OAUTH_TOKEN - Anthropic OAuth token (alternative to API key) ANT_LING

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/cli.jsView on unpkg

•Manifest-reachable source resolves another installed package, overwrites its runtime code, and injects package-defined remote behavior. dist/cli.js: var y6=Object.defineProperty;var b6=(n=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(n,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):n)(function(n){if(typeof require<"u"... AZURE_OPENAI_BASE_URL - Azure OpenAI/Cognitive Services base URL (e.g. https://{resource}.openai.azure.com) YORN_SHARE_VIEWER_URL - Base URL for /share command (default: https://pi.dev/session/) `)}var lA,rm=y(()=>{"use strict";me();lA=["off","minimal","low","medium","high","xhigh","max"]});var kn,sm=y(()=>{"use strict";kn="medium"});import dA from"chalk";import{minimatch ... ${s}`),i.push({type:"error",reason:o.stopReason,error:o}),i.end()}

High

Entrypoint Foreign Package Code Overwrite

Manifest-reachable source overwrites another installed package with package-defined remote behavior.

dist/cli.jsView on unpkg

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/cli.jsView on unpkg · L2

2Trigger-reachable command-output exfiltration chain: manifest.bin -> dist/cli.js L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var y6=Object.defineProperty;var b6=(n=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(n,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):n)(function(n){if(typeof require<"u"... L4: `)}function QM(n){return n.map(e=>e.type==="text"?e.text:e.type==="thinking"?e.thinking:`${e.name}:${JSON.stringify(e.arguments)}`).join(`

High

Trigger Reachable Command Output Exfiltration

A manifest entrypoint or package-local install chain reaches command-output exfiltration behavior.

dist/cli.jsView on unpkg · L2

1#!/usr/bin/env node L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var y6=Object.defineProperty;var b6=(n=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(n,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):n)(function(n){if(typeof require<"u"...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/cli.jsView on unpkg · L1

2import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var y6=Object.defineProperty;var b6=(n=>typeof require<"u"?require:typeof Proxy<"u"?new Proxy(n,{get:(e,t)=>(typeof require<"u"?require:e)[t]}):n)(function(n){if(typeof require<"u"... L4: `)}function QM(n){return n.map(e=>e.type==="text"?e.text:e.type==="thinking"?e.thinking:`${e.name}:${JSON.stringify(e.arguments)}`).join(` ... L278: </body> L279: </html>`}function Mo(n){return I1({title:"Authentication successful",heading:"Authentication successful",message:n})}function at(n,e){return I1({title:"Authentication failed",headi... L280: `),i=e.filter(s=>s.type==="image"),o=t.length>0;if(i.length===0||!n.input.includes("image"))return ie(o?t:i.length>0?"(see attached image)":"(

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/cli.jsView on unpkg · L2

dist/skills/screenshot/scripts/take_screenshot.pyView file

•path = dist/skills/screenshot/scripts/take_screenshot.py kind = build_helper sizeBytes = 19659 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

dist/skills/screenshot/scripts/take_screenshot.pyView on unpkg

dist/skills/theme-factory/theme-showcase.pdfView file

•path = dist/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.

dist/skills/theme-factory/theme-showcase.pdfView on unpkg

Source & flagged code

11 flagged · loading source

dist/cli.jsView 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.

dist/cli.jsView on unpkg

High

Child Process

Package source references child process execution.

dist/cli.jsView on unpkg · L2

Findings

1 Critical7 High5 Medium6 Low

CriticalPrevious Version Dangerous Deltadist/cli.js

HighChild Processdist/cli.js

HighSame File Env Network Executiondist/cli.js

HighCredential Redirect Persistencedist/cli.js

HighEntrypoint Foreign Package Code Overwritedist/cli.js

HighCommand Output Exfiltrationdist/cli.js

HighTrigger Reachable Command Output Exfiltrationdist/cli.js

HighShips High Entropy Blobdist/skills/theme-factory/theme-showcase.pdf

MediumDynamic Requiredist/cli.js

MediumNetwork

MediumEnvironment Vars

MediumShips Build Helperdist/skills/screenshot/scripts/take_screenshot.py