@yes20sh/ts-node-express@1.0.4
TypeScript Express CRUD API with Database
AI Security Review
scanned 11d ago · by lpm-firewall-aiThe install hook makes persistent changes to the consumer project and runs a detached follow-up writer, so this is a real lifecycle risk. The inspected behavior resembles scaffolding and does not establish a concrete malicious attack; downgrade to a warning.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Installing the package in a project other than the package's own directory.
Impact
Existing project configuration may be replaced or altered without a separate setup command; no data theft or remote activity was identified in the inspected hook.
Mechanism
The hook copies source and template files, writes package.json with scaffold defaults, and starts a delayed detached updater.
AI rationale
The install hook makes persistent changes to the consumer project and runs a detached follow-up writer, so this is a real lifecycle risk. The inspected behavior resembles scaffolding and does not establish a concrete malicious attack; downgrade to a warning.
Evidence
package.jsonscripts/postinstall.jssrctsconfig.json.env.gitignore
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package automatically runs scripts/postinstall.js after installation.
- The hook targets the invoking project and copies or writes project files, including tsconfig.json and .env.
- It edits the consumer package.json and starts a detached process that repeats writes after a delay.
Evidence against
- The copied .env template contains only development defaults and a localhost MongoDB address.
- The hook skips copying src when the consumer already has a src directory, and its package.json merges preserve existing script and dependency values.
Behavioral surface
ChildProcessEnvironmentVarsFilesystem
HighEntropyStrings
Source & flagged code
6 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkg12"postinstall": "node scripts/postinstall.js",
"start": "node dist/server.js",
"dev": "nodemon --watch \"src/**/*.ts\" --exec ts-node src/server.ts",
"lint": "eslint \"s
Medium
Suspicious Lifecycle Evidence
The package automatically runs scripts/postinstall.js after installation.
package.jsonView on unpkg · L12scripts/postinstall.jsView file
Findings
2 High6 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
HighPrevious Version Dangerous Deltascripts/postinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
MediumSuspicious Lifecycle Evidencepackage.json
MediumAi Review Evidencescripts/postinstall.js
MediumAi Review Evidencescripts/postinstall.js
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to @yes20sh/ts-node-express@1.0.4.
See all versions of @yes20sh/ts-node-express for other recorded verdicts.
- Review the evidence and your use of @yes20sh/ts-node-express@1.0.4 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.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.