@yes20sh/ts-node-express@1.0.2
TypeScript Express CRUD API with Database
AI Security Review
scanned 11d ago · by lpm-firewall-aiThe automatic postinstall mutates the consuming project, creating unresolved install-time side-effect risk. The inspected source does not show the specific attack behaviors required for a publish block.
Static reason
One or more suspicious static signals were detected.
Trigger
The npm postinstall lifecycle runs during package installation.
Impact
This can change project files and package behavior without a separate setup command; no broader attack was established in inspected source.
Mechanism
The script uses INIT_CWD as the consumer project and creates missing source/configuration files and dev, build, and start script entries.
AI rationale
The automatic postinstall mutates the consuming project, creating unresolved install-time side-effect risk. The inspected source does not show the specific attack behaviors required for a publish block.
Evidence
package.jsonscripts/postinstall.jssrctsconfig.json.env
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json runs scripts/postinstall.js automatically after installation.
- The postinstall targets INIT_CWD when it differs from the package directory and copies package files into that project.
- It adds missing dev, build, and start scripts and writes the consumer project's package.json.
Evidence against
- The script only fills missing files and script names; inspected code shows no network access, credential collection, or shell execution.
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStrings
Source & flagged code
5 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 unpkg8"prepublishOnly": "npm run build",
"postinstall": "node scripts/postinstall.js",
"start": "node dist/server.js",
"
Medium
Suspicious Lifecycle Evidence
package.json runs scripts/postinstall.js automatically after installation.
package.jsonView on unpkg · L8scripts/postinstall.jsView file
Findings
1 High5 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumEnvironment Vars
MediumSuspicious Lifecycle Evidencepackage.json
MediumSuspicious Lifecycle 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@1.0.2.
See all versions of @yes20sh/ts-node-express for other recorded verdicts.
- Review the evidence and your use of @yes20sh/ts-node-express@1.0.2 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: .
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