---
canonical: "https://firewall.lpm.dev/npm/@pilllesss/yorn/v/1.0.131"
markdown: "https://firewall.lpm.dev/npm/@pilllesss/yorn/v/1.0.131.md"
package: "@pilllesss/yorn"
report_status: "published"
title: "@pilllesss/yorn@1.0.131 npm security report"
verdict: "clean"
version: "1.0.131"
---

# @pilllesss/yorn@1.0.131 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
**Allowed — no malicious behavior detected** — No malicious behavior detected. 21 low-signal pattern(s) reviewed.

- **Verdict:** Clean
- **Product-default install policy:** Allow
- **Firewall policy:** No policy match
- **Public report status:** Published
- **Threat category:** None published
- **Selected version:** 1.0.131
- **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: clean; recommendation: mark clean. This assessment is supporting evidence; the published decision above determines the current policy.

Source inspection found a bundled AI coding CLI, not an install-time payload. The claimed credential redirection/foreign overwrite was not confirmed; the inspected Antigravity override is constrained to Google API hosts.

## Latest scan
- **Scanner version:** rust-scanner-worker-schema-1
- **Recorded final verdict:** Clean
- **Recorded analysis confidence:** 78.0%
- **Started:** 2026-08-25T23:31:42.599Z
- **Finished:** 2026-08-25T23:32:54.501Z
- **Download time:** 775 ms
- **Static scan time:** 8388 ms
- **AI review time:** 62738 ms
- **Total time:** 71902 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:** No confirmed malicious install-time or import-time attack surface was found. Runtime network, credential, shell, and file capabilities are exposed through the user-invoked coding-agent CLI.

- **Trigger:** User runs the yorn CLI and selects its tools/providers.

- **Impact:** No concrete exfiltration, foreign-package overwrite, or stealth persistence chain was confirmed.

- **Evidence paths:** package.json, dist/yorn.cjs

- **Review source:** ai\_review

- **Reviewed:** 2026-08-25T23:32:54.501Z

### AI review details

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

- **Mechanism:** User-directed AI coding-agent operations

- **Rationale:** Source inspection found a bundled AI coding CLI, not an install-time payload. The claimed credential redirection/foreign overwrite was not confirmed; the inspected Antigravity override is constrained to Google API hosts.

### Review decision

- **Verdict:** Clean

- **Confidence:** 78.0%

- **Recommended action:** mark\_clean

- **Intent class:** Benign

- **False-positive risk:** Medium

- **Evidence for AI clean decision:** Only lifecycle hook is prepublishOnly build; no install-time hook., The published entrypoint is an explicit yorn CLI bin., Bundle’s Antigravity base URL validation restricts overrides to Google APIs.

- **Evidence against:** dist/yorn.cjs is a large, heavily bundled/obfuscated coding-agent CLI with user-invoked shell and file tools., It handles model-provider credentials and network requests at runtime, consistent with its stated CLI purpose.

## Affected versions and remediation

This report applies to @pilllesss/yorn@1.0.131.

- Review the evidence and your use of @pilllesss/yorn@1.0.131 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@1.0.131/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[tGj.build([tGj.build(["fer-","encodi"],[0,1]),"trans","ng"],[1,0,2])]&&!t[tGj.build(["content","-length"],[0,1])]}...
L24: `)}function eXp(e){return e.map(e=>"text"===e.type?e.text:tGM.evalInvariant(31401)&&"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@1.0.131/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,b,h,p,m,f,g,_,y,E,S,v,A,T,w,C,I,x,R,O,k,N,D,P,M,L,F,U,B,$,j,G,q,H,W,V,Y,K,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eb,eh,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. High: Same File Env Network Execution
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
L11: ${eMF(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eMF(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.refusal??null},finish_reason:i,index:r,logprobs:n}}),crea...
L13: Content-Disposition: form-data; name="`;return e.forEach((e,t)=>"string"==typeof e?r.push(n+Py(t)+`"\r
...
L22: \r
L23: `),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tGj.build([tGj.build(["fer-","encodi"],[0,1]),"trans","ng"],[1,0,2])]&&!t[tGj.build(["content","-length"],[0,1])]}...
L24: `)}function eXp(e){return e.map(e=>"text"===e.type?e.text:tGM.evalInvariant(31401)&&"thinking"===e.type?e.thinking:`${e.name}:${JSON.stringify(e.arguments)}`).join(`
```

### 9. High: Credential Redirect Persistence
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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[tGj.build([tGj.build(["fer-","encodi"],[0,1]),"trans","ng"],[1,0,2])]&&!t[tGj.build(["content","-length"],[0,1])]}...
`)}function eX_(e,t){let i=Math.min(e.length,t.length),r=0;for(;r<i&&e[r]===t[r];)r++;return r}function eXy(e,t,i,r){let n=eXg(t),s=eXc(n),l=eXc(eXp(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 eXW(e,t){return Yb.Unsafe({type:"string",enum:e,...t?.description&&{description:t.descrip...
--api-key <key>                API key (defaults to env vars)
# Print a prov
```

### 10. High: Entrypoint Foreign Package Code Overwrite
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/dist/yorn.cjs>)

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

Public source snippet (untrusted):

```javascript
Manifest-reachable source resolves another installed package, overwrites its runtime code, and injects package-defined remote behavior.
dist/yorn.cjs:
`)),r.push(`--${i}--`),new t(r,{type:tGj.build(["multi","ndar","y=","part/for",tGj.build(["bou","m-data; "],[1,0])],[0,3,4,1,2])+i})}function eM9(e){let t=e.match(/\bfilename=("(.*...
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/)
</html>`}function te9(e){return te7({title:tGj.build(["Authe","nticatio",tGj.build(["n successf","u"],[0,1]),"l"],[0,1,2,3]),heading:tGj.build([tGj.build(["at","Authentic"],[1,0]),...
`)||"";n.block.thinking=s||o||n.block.thinking,n.block.thinkingS
```

### 11. High: Command Output Exfiltration
- **Category:** Source
- **Confidence:** 82.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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 eNR(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: ${eMF(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eMF(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eMF(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+Py(t)+`"\r
...
L22: \r
L23: `),n=!1,s=!1;e.on("response",e=>{let{headers:t}=e;n="chunked"===t[tGj.build([tGj.build(["fe
```

### 12. High: Cloud Metadata Access
- **Category:** Source
- **Confidence:** 84.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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,b,h,p,m,f,g,_,y,E,S,v,A,T,w,C,I,x,R,O,k,N,D,P,M,L,F,U,B,$,j,G,q,H,W,V,Y,K,z,Q,J,X,Z,ee,et,ei,er,en,es,el,ea,eo,eu,ed,ec,eb,eh,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 eNR(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: ${eMF(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eMF(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eMF(e)}`);return{...a,id:l,type:s,function:{...d,name:u,arguments:o}}})}}:{...s,message:{...u,content:l,role:d,refusal:t.
```

### 13. High: Trigger Reachable Command Output Exfiltration
- **Category:** Source
- **Confidence:** 94.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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 eNR(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: ${eMF(e)}`);if(null==s)throw new Il(`missing choices[${r}].tool_calls[${i}].type
...
L11: ${eMF(e)}`);if(null==o)throw new Il(`missing choices[${r}].tool_calls[${i}].function.arguments
L12: ${eMF(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+Py(t)+`"\r
...
L22: \r
L23: `),n=!1,
```

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

Package source contains high-entropy string patterns.

### 15. 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@1.0.131/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]
```

### 16. Medium: Oversized Source File
- **Category:** Artifact Inventory
- **Confidence:** 70.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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 = 7665772
magicHex = [redacted]
```

### 17. Medium: Oversized Cli Entrypoint
- **Category:** Artifact Inventory
- **Confidence:** 80.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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 = 7665772
magicHex = [redacted]
```

### 18. 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.

### 19. High: Semantic Analysis Limited
- **Category:** Scanner Coverage
- **Confidence:** 100.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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
```

### 20. High: Known Malware Source Similarity
- **Category:** Static
- **Confidence:** 97.0%
- **Path:** dist/yorn.cjs
- **Public source:** [View source](<https://unpkg.com/@pilllesss/yorn@1.0.131/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@1.0.92
matchedPath = dist/yorn.cjs
matchedIdentity = npm:QHBpbGxsZXNzcy95b3Ju:1.0.92
similarity = 1.000
summary = normalized source hash matched finalized malicious source
```

### 21. 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@1.0.131/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 = 8eb5d4d2248a43c7
signatureType = suspicious_hashes
sourceLabel = final_verdict:malicious
matchedPackage = @pilllesss/yorn@1.0.92
matchedPath = dist/yorn.cjs
matchedIdentity = npm:QHBpbGxsZXNzcy95b3Ju:1.0.92
similarity = 1.000
shingleOverlap = 2
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:** 1.0.131
- **License:** MIT
- **Version published:** 2026-08-25T23:28:07.842Z
- **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/1.0.131>)