registry / Remote code execution / chai-foundry

chai-foundry

This document describes the management of vulnerabilities for the project and all modules within the organization.

This report shows the evidence for chai-foundry@7.0.3. 2 of 2 known versions are blocked or flagged. See all versions.

This package appears in our research on the fake chai plugin campaign, with how it works, the full package list and what to do if you installed it.

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

The source establishes a concrete import-time hidden payload with process execution and network capability; no legitimate package function accounts for it. Absence of lifecycle hooks limits installation-time scope but does not mitigate runtime compromise.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

Application runtime import/require of chai-foundry

Impact

Potential execution of downloaded/constructed commands and collection or transmission of local environment data.

Mechanism

import-time obfuscated command execution and network-capable payload

Attack narrative

A consumer requiring the package loads index.js, which unconditionally requires lib/config.js. The latter is a 4.1 MB obfuscated executable payload with filesystem, OS, child-process, environment-file, and axios networking capabilities. Its import-time placement conceals behavior unrelated to the advertised middleware/logger surface and permits command execution and outbound transmission in the consumer process.

AI rationale

Evidence

package.jsonindex.jslib/config.js

Decision evidence

public snapshot

AI called this Malicious at 98.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js imports ./lib/config at module load.
lib/config.js is a 4.1 MB single-line obfuscated payload.
lib/config.js imports os, fs, path, execSync, and spawn.
lib/config.js contains axios requests and references .env.
The obfuscated payload executes during require, not via a declared lifecycle hook.

Evidence against

package.json declares no preinstall, install, or postinstall hook.
index.js's exported middleware is otherwise a no-op.

Behavioral surface

Source

ChildProcessEnvironmentVars

Supply chain

HighEntropyStringsMinifiedUrlStrings

ManifestNo manifest risk signals triggered.

scanned 15 file(s), 307 KB of source, external domains: github.com

Oversized source lightweight scan

lib/config.js3.91 MB file, sampled 256 KB

HighEntropyStrings

Source & flagged code

4 flagged

index.jsView file

3const path = require('path'); L4: const { spawn } = require('child_process'); L5: const { DEFAULT_LEVELS, SORTING_ORDER } = require('./lib/constants');

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L3

lib/config.jsView file

1function yW(F,S,Y,E,i){const FB={F:0x2f4};return T(i-FB.F,F);}function yx(F,S,Y,E,i){const FN={F:0x32d};return j(S- -FN.F,Y);}(function(F,S){const Fn={F:0x620b,S:0x51ad,Y:'\x36\x39...

Critical

Download Execute

Source downloads or fetches remote code and executes it.

lib/config.jsView on unpkg · L1

1Trigger-reachable chain: manifest.main -> index.js -> lib/config.js L1: function yW(F,S,Y,E,i){const FB={F:0x2f4};return T(i-FB.F,F);}function yx(F,S,Y,E,i){const FN={F:0x32d};return j(S- -FN.F,Y);}(function(F,S){const Fn={F:0x620b,S:0x51ad,Y:'\x36\x39...

Critical

Trigger Reachable Dangerous Capability

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

lib/config.jsView on unpkg · L1

docs/transports.mdView file

550patternName = generic_password severity = medium line = 550 matchedText = password...rd',

Medium

Secret Pattern

Hardcoded password in docs/transports.md

docs/transports.mdView on unpkg · L550

Source & flagged code

4 flagged · loading source

index.jsView file

3const path = require('path'); L4: const { spawn } = require('child_process'); L5: const { DEFAULT_LEVELS, SORTING_ORDER } = require('./lib/constants');

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L3

lib/config.jsView file

1function yW(F,S,Y,E,i){const FB={F:0x2f4};return T(i-FB.F,F);}function yx(F,S,Y,E,i){const FN={F:0x32d};return j(S- -FN.F,Y);}(function(F,S){const Fn={F:0x620b,S:0x51ad,Y:'\x36\x39...

Critical

Download Execute

Source downloads or fetches remote code and executes it.

lib/config.jsView on unpkg · L1

Critical

Trigger Reachable Dangerous Capability

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

Findings

2 Critical1 High3 Medium3 Low

CriticalDownload Executelib/config.js

CriticalTrigger Reachable Dangerous Capabilitylib/config.js

HighChild Processindex.js

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

MediumSecret Patterndocs/transports.md

LowScripts Present

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to chai-foundry@7.0.3.

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

Avoid installing chai-foundry@7.0.3. 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: 2026-09-24 09:10:32.783Z (UTC).

Source advisory published: 2026-08-05 16:37:52.000Z (UTC).

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

Versions

2 known versions

7.0.3latestshownMaliciousRemote Code ExecutionBlockPublishedJul 20, 2026, 11:53 PM 7.0.2MaliciousMalwareBlockPublishedJul 19, 2026, 5:22 PM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

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Behavioral surface

Source & flagged code

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