stretchshop@0.7.5
Fast & scalable e-commerce
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-13460 confirms this npm version as malicious.
Advisory
MAL-2026-13460
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in stretchshop (npm)
Details
package.json declares a postinstall hook that runs `node demo/demo.js base`, which shell-invokes `git clone https://github.com/Wradgio/StretchShop-demo-data.git` at mutable HEAD (no commit SHA, no tag, no integrity check) and then `childProcess.fork`s `db/demo_data.js` from the freshly cloned tree. The cloned repository is owned by the personal GitHub account `Wradgio`, which does not match the package's publisher scope `StretchShop`. Whoever controls that GitHub account can push arbitrary JavaScript to the default branch and have it executed on every fresh top-level install of stretchshop@0.7.5.
References
Independent LPM AI assessment
SuspiciousIndependent AI assessment: suspicious. LPM AI assessed this version as suspicious; the assessments disagree.
This is a documented project bootstrapper, not confirmed malware, but an install-time unpinned remote payload fetch and consumer-project mutation is a real supply-chain risk. Warn rather than block because no exfiltration, destructive action, or lifecycle execution of the fetched code was found.
Static reason
One or more suspicious static signals were detected.
Trigger
npm installation; activates when consumer public, resources, or services directories are absent.
Impact
Creates demo application content and possibly .env in the consumer project; future use may consume remotely sourced files.
Mechanism
postinstall git clone followed by conditional project-file copying
AI rationale
This is a documented project bootstrapper, not confirmed malware, but an install-time unpinned remote payload fetch and consumer-project mutation is a real supply-chain risk. Warn rather than block because no exfiltration, destructive action, or lifecycle execution of the fetched code was found.
Evidence
package.jsondemo/demo.jsREADME.mddemo/repo../../public../../resources../../services../../moleculer.config.js../../package.json../../.env
Network endpoints1
github.com/Wradgio/StretchShop-demo-data.git
Independent scan evidence
public snapshotAI called this Suspicious at 90.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for AI warning decision
- package.json runs demo/demo.js as postinstall.
- demo/demo.js clones an unpinned GitHub repository during install when consumer app folders are absent.
- The hook copies remote public/resources/services into the consumer project and may create .env.
- Remote demo code is not executed by the postinstall base path.
Evidence against
- README.md describes npm installation as creating a demo e-shop project.
- No credential harvesting, exfiltration, eval, or AI-agent configuration writes found.
- The only install-time network target is a named demo-data repository.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
CopyleftLicense
Source & flagged code
3 flaggedpackage.jsonView file
•scripts.postinstall = node demo/demo.js base
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node demo/demo.js base
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdemo/demo.jsView file
1const path = require("path");
L2: const childProcess = require("child_process");
Medium
Dynamic Require
Package source references dynamic require/import behavior.
demo/demo.jsView on unpkg · L1Findings
1 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requiredemo/demo.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowCopyleft License
Affected versions and remediation
This report applies to stretchshop@0.7.5.
See all versions of stretchshop for other recorded verdicts.
- Avoid installing stretchshop@0.7.5. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.