--- canonical: "https://firewall.lpm.dev/npm/@siwatfa/yorn/v/0.0.25" markdown: "https://firewall.lpm.dev/npm/@siwatfa/yorn/v/0.0.25.md" package: "@siwatfa/yorn" report_status: "published" title: "@siwatfa/yorn@0.0.25 npm security report" verdict: "malicious" version: "0.0.25" --- # @siwatfa/yorn@0.0.25 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 **Blocked & quarantined** — No unconsented install-time mutation, credential theft, or exfiltration was confirmed. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Malware - **Selected version:** 0.0.25 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) No confirmed malicious attack surface. The distributed entrypoint is a user-invoked AI coding-agent CLI. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Verdict:** Malicious - **Confidence:** 88.0% - **Started:** 2026-08-18T21:32:50.516Z - **Finished:** 2026-08-18T21:35:05.764Z - **Download time:** 510 ms - **Static scan time:** 48299 ms - **AI review time:** 86439 ms - **Total time:** 135248 ms ## Security analysis ### Published attack-surface review - **Summary:** No confirmed malicious attack surface. The distributed entrypoint is a user-invoked AI coding-agent CLI. - **Trigger:** User runs the yorn command. - **Impact:** No unconsented install-time mutation, credential theft, or exfiltration was confirmed. - **Evidence paths:** package.json, dist/cli.js, README.md - **Review source:** ai\_review - **Reviewed:** 2026-08-18T21:35:05.764Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** AI-provider and self-update CLI functionality - **Rationale:** Static inspection found a bundled coding-agent CLI with documented provider, extension, and self-update capabilities, but no install-time execution or concrete malicious chain. Scanner findings conflate expected CLI/provider behavior with malware indicators. ### Review decision - **Verdict:** Clean - **Confidence:** 88.0% - **Recommended action:** mark\_clean - **Intent class:** Benign - **False-positive risk:** Low - **Evidence for:** Manifest exposes a user-invoked yorn CLI., Only prepublishOnly runs, and it builds before publishing., CLI self-update targets its own global package install. - **Evidence against:** No preinstall, install, or postinstall hook exists., No source-confirmed credential harvesting or exfiltration chain was found., Network and child-process functionality is consistent with an AI coding-agent CLI and its documented provider/update features. ## 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/cli.js - **Public source:** [View source]() Package source references child process execution. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ``` ### 4. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** dist/cli.js - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L1: #!/usr/bin/env node L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... ``` ### 5. Low: Weak Crypto - **Category:** Source - **Confidence:** 64.0% - **Path:** dist/cli.js - **Public source:** [View source]() Package source references weak cryptographic algorithms. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ... L10: L11: More information can be found at: https://a.co/c895JFp`))}}});var gGt,yGt,SFe,xFe=ae(()=>{gGt=()=>(t,e)=>async n=>(e.__retryLongPoll=!0,t(n)),yGt={name:"longPollMiddleware",tags:["... L12: `+d}catch{!n.logger||n.logger?.constructor?.name==="NoOpLogger"?console.warn(d):n.logger?.warn?.(d)}typeof ``` ### 6. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 7. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 8. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 9. High: Same File Env Network Execution - **Category:** Source - **Confidence:** 85.0% - **Path:** dist/cli.js - **Public source:** [View source]() A single source file combines environment access, network access, and code or shell execution; review context before blocking. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ... L10: L11: More information can be found at: https://a.co/c895JFp`))}}});var gGt,yGt,SFe,xFe=ae(()=>{gGt=()=>(t,e)=>async n=>(e.__retryLongPoll=!0,t(n)),yGt={name:"longPollMiddleware",tags:["... L12: `+d}catch{!n.logger||n.logger?.constructor?.name==="NoOpLogger"?console.warn(d):n.logger?.warn?.(d)}typeof ``` ### 10. High: Credential Redirect Persistence - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/cli.js - **Public source:** [View source]() 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/cli.js: `));return n(i)}});var Rq,ch,MGe=ae(()=>{Iq();Rq={step:"serialize",tags:["HTTP_AUTH_SCHEME"],name:"httpAuthSchemeMiddleware",override:!0,relation:"before",toMiddleware:"endpointV2M... `);return this.signString(h,{signingDate:r,signingRegion:l,signingService:o,eventStreamCredentials:a})}async signMessage(e,{signingDate:n=new Date,signingRegion:r,signingService:i,... - EKS container host 169.254.170.23 or [fd00:ec2::23]`,{logger:e})}};function Tjt(t){return new yjt({protocol:t.protocol,hostname:t.hostname,port:Number(t.port),path:t.pathname,que... Set AWS_CONTAINER_CREDENTIALS_FULL_URI or AWS_CONTAINER_CREDENTIALS_RELATIVE_U ``` ### 11. High: Entrypoint Foreign Package Code Overwrite - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/cli.js - **Public source:** [View source]() 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/cli.js: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... More information can be found at: https://a.co/c895JFp`))}}});var gGt,yGt,SFe,xFe=ae(()=>{gGt=()=>(t,e)=>async n=>(e.__retryLongPoll=!0,t(n)),yGt={name:"longPollMiddleware",tags:["... `+a}catch{!r.logger||r.logger?.constructor?.name==="NoOpLogger"?console.warn(a):r.logger?.warn?.(a)}typeof o.$responseBodyText<"u"&&o.$response&&(o.$response.body=o.$responseBodyTe... If you are using React Native, this API is not yet supported, see: https://react-native.canny.io/fe ``` ### 12. High: Command Output Exfiltration - **Category:** Source - **Confidence:** 82.0% - **Path:** dist/cli.js - **Public source:** [View source]() Source combines command execution, command-output handling, and outbound requests; review data flow before blocking. Public source snippet (untrusted): ```javascript L39: For more information, please visit: `+Yqt);let i=t.originalExpiration??t.expiration;return{...t,...i?{originalExpiration:i}:{},expiration:r}},Qqt=(t,e={})=>{let n=e?.logger||consol... L40: See https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/node-configuring-maxsockets.html L41: or increase socketAcquisitionWarningTimeout=(millis) in the NodeHttpHandler config.`),Date.now()}return n}constructor(e){this.configProvider=new Promise((n,r)=>{typeof e=="function... L42: - loopback CIDR 127.0.0.0/8 or [::1/128] ... L54: `)||(u["#text"]="#text"in u?u["#text"]+c:c);for(let c of o)c.tag==="__proto__"&&Sae(u),c.tag in u?Array.isArray(u[c.tag])?u[c.tag].push(c.value):u[c.tag]=[u[c.tag],c.value]:u[c.tag... L55: Reference: https://docs.aws.amazon.com/cli/latest/userguide/cli-config ``` ### 13. High: Sandbox Evasion Gated Capability - **Category:** Source - **Confidence:** 84.0% - **Path:** dist/cli.js - **Public source:** [View source]() Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ... L10: L11: More information can be found at: https://a.co/c895JFp`))}}});var gGt,yGt,SFe,xFe=ae(()=>{gGt=()=>(t,e)=>async n=>(e.__retryLongPoll=!0,t(n)),yGt={name:"longPollMiddleware",tags:["... L12: `+d}catch{!n.logger||n.logger?.constructor?.name==="NoOpLogger"?console.warn(d):n.logger?.warn?.(d)}typeof ``` ### 14. High: Cloud Metadata Access - **Category:** Source - **Confidence:** 84.0% - **Path:** dist/cli.js - **Public source:** [View source]() Source reaches cloud instance metadata or link-local credential endpoints. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ... L10: L11: More information can be found at: https://a.co/c895JFp`))}}});var gGt,yGt,SFe,xFe=ae(()=>{gGt=()=>(t,e)=>async n=>(e.__retryLongPoll=!0,t(n)),yGt={name:"longPollMiddleware",tags:["... L12: `+d}catch{!n.logger||n.logger?.constructor?.name==="NoOpLogger"?console.warn(d):n.logger?.warn?.(d)}typeof ``` ### 15. High: Remote Agent Bridge - **Category:** Source - **Confidence:** 84.0% - **Path:** dist/cli.js - **Public source:** [View source]() Source exposes local file and command tools to a remote model endpoint. Public source snippet (untrusted): ```javascript L2: import { createRequire as __createRequire } from 'module'; const require = __createRequire(import.meta.url); L3: var APt=Object.create;var P3=Object.defineProperty;var IPt=Object.getOwnPropertyDescriptor;var RPt=Object.getOwnPropertyNames;var PPt=Object.getPrototypeOf,kPt=Object.prototype.has... L4: \r `.includes(t[r]);)r++};return o()},SFt=IOe;Wl.parse=SFt});var IN,vf,_Fe=ae(()=>{IN={warningEmitted:!1},vf=t=>{if(t&&!IN.warningEmitted){if(process.env.AWS_SDK_JS_NODE_VERSION_SU... ... L77: `;let l=(0,Wtn.parseProxyResponse)(i);i.write(`${a}\r L78: `);let{connect:u,buffered:c}=await l;if(e.emit("proxyConnect",u),this.emit("proxyConnect",u,e),u.statusCode===200)return e.once("socket",Gtn),n.secureEndpoint?(qL("Upgrading socket... L79: `):[]}};Dp=new WeakMap,Lp=new WeakMap;cv.NEWLINE_CHARS ``` ### 16. High: Trigger Reachable Command Output Exfiltration - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/cli.js - **Public source:** [View source]() 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/cli.js L39: For more information, please visit: `+Yqt);let i=t.originalExpiration??t.expiration;return{...t,...i?{originalExpiration:i}:{},expiration:r}},Qqt=(t,e={})=>{let n=e?.logger||consol... L40: See https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/node-configuring-maxsockets.html L41: or increase socketAcquisitionWarningTimeout=(millis) in the NodeHttpHandler config.`),Date.now()}return n}constructor(e){this.configProvider=new Promise((n,r)=>{typeof e=="function... L42: - loopback CIDR 127.0.0.0/8 or [::1/128] ... L54: `)||(u["#text"]="#text"in u?u["#text"]+c:c);for(let c of o)c.tag==="__proto__"&&Sae(u),c.tag in u?Array.isArray(u[c.tag])?u[c.tag].push(c.value):u[c.tag]=[u[c.tag],c.value]:u[c.t ``` ### 17. Medium: Protestware - **Category:** Supply Chain - **Confidence:** 90.0% Package source has broad protestware-like patterns that need review. ### 18. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 19. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 20. Medium: Oversized Source File - **Category:** Artifact Inventory - **Confidence:** 70.0% - **Path:** dist/cli.js - **Public source:** [View source]() Package contains source files above the normal full-analysis size ceiling. Public source snippet (untrusted): ```javascript path = dist/cli.js kind = oversized_source_file sizeBytes = 6508671 magicHex = [redacted] ``` ### 21. Medium: Oversized Cli Entrypoint - **Category:** Artifact Inventory - **Confidence:** 80.0% - **Path:** dist/cli.js - **Public source:** [View source]() Package contains an oversized executable-looking CLI entrypoint. Public source snippet (untrusted): ```javascript path = dist/cli.js kind = oversized_cli_entrypoint sizeBytes = 6508671 magicHex = [redacted] ``` ### 22. 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. ### 23. High: Semantic Analysis Limited - **Category:** Scanner Coverage - **Confidence:** 100.0% - **Path:** dist/cli.js - **Public source:** [View source]() 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 ``` ## 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:** @siwatfa/yorn - **Ecosystem:** npm - **Version:** 0.0.25 - **License:** MIT - **Version published:** 2026-08-12T23:17:01.624Z - **Package first seen:** 2026-08-17T10:12:13.586Z - **Package last seen:** 2026-08-18T21:55:06.065Z - **Known versions:** 149 - **Latest version:** 0.0.1-security - **Appeal under review:** No ## References - [HTML security report]() - [OSV advisory]() - [ADVISORY]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]() - [PACKAGE]()