---
canonical: "https://firewall.lpm.dev/npm/@pilllesss/yorn/v/1.0.268"
markdown: "https://firewall.lpm.dev/npm/@pilllesss/yorn/v/1.0.268.md"
package: "@pilllesss/yorn"
report_status: "published"
title: "@pilllesss/yorn@1.0.268 npm security report"
verdict: "suspicious"
version: "1.0.268"
---

# @pilllesss/yorn@1.0.268 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 — allowed with a warning** — Allowed by default policy, but 23 finding(s) warrant review before installing.

- **Verdict:** Suspicious
- **Product-default install policy:** Warn
- **Firewall policy:** Matched warn-list
- **Public report status:** Published
- **Threat category:** Persistence
- **Selected version:** 1.0.268
- **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.

The package has meaningful and unusually broad runtime capability plus automatic self-update, but no install lifecycle hook or concrete malicious exfiltration behavior was confirmed. It should be warned on rather than blocked.

## Latest scan
- **Scanner version:** rust-scanner-worker-schema-1
- **Recorded final verdict:** Suspicious
- **Recorded analysis confidence:** 76.0%
- **Started:** 2026-09-05T00:36:49.723Z
- **Finished:** 2026-09-05T00:38:05.919Z
- **Download time:** 508 ms
- **Static scan time:** 10005 ms
- **AI review time:** 65682 ms
- **Total time:** 76196 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:** Running the interactive CLI can contact the npm registry and replace the globally installed executable with the newest package release. The agent can also access local project resources and run commands when invoked for those tasks.

- **Trigger:** A user starts the interactive yorn CLI or asks it to use its agent tools.

- **Impact:** A compromised future registry release could be installed automatically; agent tools can affect files and commands within the user's session.

- **Evidence paths:** README.md, dist/yorn.cjs, dist/skills/screenshot/scripts/take\_screenshot.ps1, dist/skills/subagent/run\_agent.sh

- **Review source:** ai\_review

- **Reviewed:** 2026-09-05T00:38:05.919Z

### AI review details

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

- **Mechanism:** Automatic global self-update plus AI-agent tool execution.

- **Rationale:** The package has meaningful and unusually broad runtime capability plus automatic self-update, but no install lifecycle hook or concrete malicious exfiltration behavior was confirmed. It should be warned on rather than blocked.

- **Files touched:** ~/.yorn/agent/auth.json, ~/.yorn/agent/settings.json, .yorn/settings.json, dist/skills/screenshot/scripts/take\_screenshot.ps1, dist/skills/subagent/run\_agent.sh

- **Network endpoints:** https://registry.npmjs.org/${q1}/latest

### Review decision

- **Verdict:** Suspicious

- **Confidence:** 76.0%

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

- **Intent class:** Dangerous Capability

- **False-positive risk:** Medium

- **Evidence for warning:** The CLI automatically checks npm for a newer release during interactive startup and globally installs it., The executable is a large, heavily transformed bundle that obscures its runtime behavior., It provides an AI agent with file, shell, screenshot, and subagent capabilities.

- **Evidence against:** package.json has no preinstall, install, or postinstall hook., No concrete credential theft, secret harvesting, or unapproved exfiltration endpoint was established by source inspection., The observed network use is for configured AI providers and npm update checks.

## Affected versions and remediation

This report applies to @pilllesss/yorn@1.0.268.

- Review the evidence and your use of @pilllesss/yorn@1.0.268 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: Non Install Lifecycle Scripts
- **Category:** Manifest
- **Confidence:** 80.0%

Package declares lifecycle scripts that are not normally run for registry tarball installs.

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

Package declares npm scripts.

### 3. High: Child Process
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Package source references child process execution.

Public source snippet (untrusted):

```javascript
L22: \r
L23: `),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tzS.build([tzS.build(["i","fer-encod"],[1,0]),"trans","ng"],[1,0,2])]&&!t[tzS.build(["ngth",tzS.build(["content-",...
L24: `)}function e0B(e){return e.map(e=>tzm.evalInvariant(16743)&&"text"===e.type?e.text:"thinking"===e.type?e.thinking:`${e.name}:${JSON.stringify(e.arguments)}`).join(`
```

### 4. Medium: Dynamic Require
- **Category:** Source
- **Confidence:** 75.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Package source references dynamic require/import behavior.

Public source snippet (untrusted):

```javascript
L1: #!/usr/bin/env node
L2: globalThis.__yorn_dynamic_import = (m) => import(m);
L3: var e,t,i,r,n,s,l,a,o,u,d,c,h,b,p,m,f,g,_,y,E,S,v,A,w,T,C,I,x,R,O,k,N,P,M,D,L,F,U,B,$,j,G,q,H,W,V,K,Y,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eh,eb,ep,em,ef,eg,e_,ey,eE,eS,ev...
```

### 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. Critical: Same File Env Network Execution
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

Public source snippet (untrusted):

```javascript
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.refusal??null},finish_reason:i,index:r,logprobs:n}}),crea...
L13: Content-Disposition: form-data; name="`;return e.forEach((e,t)=>"string"==typeof e?r.push(n+My(t)+`"\r
...
L22: \r
L23: `),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tzS.build([tzS.build(["i","fer-encod"],[1,0]),"trans","ng"],[1,0,2])]&&!t[tzS.build(["ngth",tzS.build(["content-",...
L24: `)}function e0B(e){return e.map(e=>tzm.evalInvariant(16743)&&"text"===e.type?e.text:"thinking"===e.type?e.thinking:`${e.name}:${JSON.stringify(e.arguments)}`).join(`
```

### 9. Critical: Credential Exfiltration
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Source appears to send environment or credential material to an external endpoint.

Public source snippet (untrusted):

```javascript
L2: globalThis.__yorn_dynamic_import = (m) => import(m);
L3: var e,t,i,r,n,s,l,a,o,u,d,c,h,b,p,m,f,g,_,y,E,S,v,A,w,T,C,I,x,R,O,k,N,P,M,D,L,F,U,B,$,j,G,q,H,W,V,K,Y,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eh,eb,ep,em,ef,eg,e_,ey,eE,eS,ev...
L4: `),u.push(e),u.push(`\r
...
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.
```

### 10. High: Credential Redirect Persistence
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration.
dist/yorn.cjs:
`),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tzS.build([tzS.build(["i","fer-encod"],[1,0]),"trans","ng"],[1,0,2])]&&!t[tzS.build(["ngth",tzS.build(["content-",...
`)}function e0q(e,t){let i=Math.min(e.length,t.length),r=0;for(;r<i&&e[r]===t[r];)r++;return r}function e0H(e,t,i,r){let n=e0G(t),s=e0L(n),l=e0L(e0B(e.content)),a=s,o=0,u=0,d=i?.se...
`){return"string"==typeof e?e:e.filter(e=>"text"===e.type).map(e=>e.text).join(t)}function e2l(e,t){return Kh.Unsafe({type:"string",enum:e,...t?.description&&{description:t.descrip...
--api-key <key>                API key (defaults to env vars)
# Print a prov
```

### 11. High: Command Output Exfiltration
- **Category:** Source
- **Confidence:** 82.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.refusal??null},finish_reason:i,index:r,logprobs:n}}),crea...
L13: Content-Disposition: form-data; name="`;return e.forEach((e,t)=>"string"==typeof e?r.push(n+My(t)+`"\r
...
L22: \r
L23: `),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tzS.build([tzS.build(["i"
```

### 12. High: Cloud Metadata Access
- **Category:** Source
- **Confidence:** 84.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Source reaches cloud instance metadata or link-local credential endpoints.

Public source snippet (untrusted):

```javascript
L2: globalThis.__yorn_dynamic_import = (m) => import(m);
L3: var e,t,i,r,n,s,l,a,o,u,d,c,h,b,p,m,f,g,_,y,E,S,v,A,w,T,C,I,x,R,O,k,N,P,M,D,L,F,U,B,$,j,G,q,H,W,V,K,Y,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eh,eb,ep,em,ef,eg,e_,ey,eE,eS,ev...
L4: `),u.push(e),u.push(`\r
...
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.
```

### 13. Critical: Trigger Reachable Dangerous Capability
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

Public source snippet (untrusted):

```javascript
Trigger-reachable chain: manifest.bin -> dist/yorn.cjs
L2: globalThis.__yorn_dynamic_import = (m) => import(m);
L3: var e,t,i,r,n,s,l,a,o,u,d,c,h,b,p,m,f,g,_,y,E,S,v,A,w,T,C,I,x,R,O,k,N,P,M,D,L,F,U,B,$,j,G,q,H,W,V,K,Y,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eh,eb,ep,em,ef,eg,e_,ey,eE,eS,ev...
L4: `),u.push(e),u.push(`\r
...
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:
```

### 14. High: Trigger Reachable Credential Exfiltration
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
Trigger-reachable credential exfiltration chain: manifest.bin -> dist/yorn.cjs
L2: globalThis.__yorn_dynamic_import = (m) => import(m);
L3: var e,t,i,r,n,s,l,a,o,u,d,c,h,b,p,m,f,g,_,y,E,S,v,A,w,T,C,I,x,R,O,k,N,P,M,D,L,F,U,B,$,j,G,q,H,W,V,K,Y,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eh,eb,ep,em,ef,eg,e_,ey,eE,eS,ev...
L4: `),u.push(e),u.push(`\r
...
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function
```

### 15. High: Trigger Reachable Command Output Exfiltration
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
Trigger-reachable command-output exfiltration chain: manifest.bin -> dist/yorn.cjs
L7: `),u.push(`\r
L8: `)}u.push(null)}),u}async function eDK(e,t){let i=0,r=[],n=e.getReader(),s=!1;for(;!s;){let{done:e,value:l}=await n.read();if(l&&(r.push(l),i+=l?.byteLength??0),i>=t)break;s=e}n.re...
L9: ${eU0(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eU0(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eU0(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.refusal??null},finish_reason:i,index:r,logprobs:n}}),crea...
L13: Content-Disposition: form-data; name="`;return e.forEach((e,t)=>"string"==typeof e?r.push(n+My(t)+`"\r
...
L22: \r
L23: `),n=!1,
```

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

Package source contains high-entropy string patterns.

### 17. Medium: Ships Build Helper
- **Category:** Artifact Inventory
- **Confidence:** 70.0%
- **Path:** dist/skills/screenshot/scripts/take\_screenshot.py
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/skills/screenshot/scripts/take_screenshot.py>)

Package ships non-JavaScript build or shell helper files.

Public source snippet (untrusted):

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

### 18. Medium: Oversized Source File
- **Category:** Artifact Inventory
- **Confidence:** 70.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Package contains source files above the normal full-analysis size ceiling.

Public source snippet (untrusted):

```javascript
path = dist/yorn.cjs
kind = oversized_source_file
sizeBytes = 8073405
magicHex = [redacted]
```

### 19. Medium: Oversized Cli Entrypoint
- **Category:** Artifact Inventory
- **Confidence:** 80.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Package contains an oversized executable-looking CLI entrypoint.

Public source snippet (untrusted):

```javascript
path = dist/yorn.cjs
kind = oversized_cli_entrypoint
sizeBytes = 8073405
magicHex = [redacted]
```

### 20. 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.

### 21. High: Semantic Analysis Limited
- **Category:** Scanner Coverage
- **Confidence:** 100.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

Public source snippet (untrusted):

```javascript
stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 1
```

### 22. High: Known Malware Source Similarity
- **Category:** Static
- **Confidence:** 97.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

Public source snippet (untrusted):

```javascript
matchType = normalized_sha256
matchedPackage = @pilllesss/yorn@1.0.262
matchedPath = dist/yorn.cjs
matchedIdentity = npm:QHBpbGxsZXNzcy95b3Ju:1.0.262
similarity = 1.000
summary = normalized source hash matched finalized malicious source
```

### 23. High: Known Malware Source Fingerprint Signature
- **Category:** Supply Chain
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.268/dist/yorn.cjs>)

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

Public source snippet (untrusted):

```javascript
matchType = malicious_source_fingerprint_signature
signature = f5544ecd80b66e25
signatureType = suspicious_hashes
sourceLabel = final_verdict:malicious
matchedPackage = @pilllesss/yorn@1.0.262
matchedPath = dist/yorn.cjs
matchedIdentity = npm:QHBpbGxsZXNzcy95b3Ju:1.0.262
similarity = 1.000
shingleOverlap = 3
summary = package final verdict is malicious
```

## Dependencies and install lifecycle
- **Lifecycle scripts present:** Yes
- **Published lifecycle scripts:** prepublishOnly
- **Dependencies:** 0
- **Optional dependencies:** 0
- **Peer dependencies:** 0
- **Development dependencies:** 0
- **Published dependency-graph edges:** 0

## Package metadata
- **Package:** @pilllesss/yorn
- **Ecosystem:** npm
- **Version:** 1.0.268
- **License:** MIT
- **Version published:** 2026-09-05T00:35:07.096Z
- **Package first seen:** 2026-08-20T15:25:57.938Z
- **Package last seen:** 2026-09-13T10:42:34.324Z
- **Known versions:** 110
- **Latest version:** 0.0.1-security
- **Appeal under review:** No

## References
- [HTML security report](<https://firewall.lpm.dev/npm/@pilllesss/yorn/v/1.0.268>)