rxdb-premium@17.6.0
RxDB Premium
AI Security Review
scanned 13d ago · by lpm-firewall-aiThe lifecycle chain executes remotely supplied JavaScript during installation, establishing a concrete install-time attack surface. The downloaded installer itself is absent from the snapshot, so its behavior cannot be assessed here; the remote execution mechanism is directly visible in source.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation invokes the postinstall lifecycle.
Impact
The remote server can supply code that runs during installation with the installer's privileges.
Mechanism
The first command fetches and writes remote response text to scripts/installer.js; the next command executes that file with Node.js.
Attack narrative
During package installation, the postinstall lifecycle downloads JavaScript from premium.rxdb.info, writes it to scripts/installer.js, and then runs that file. This creates an install-time remote code execution path controlled by the endpoint response.
AI rationale
The lifecycle chain executes remotely supplied JavaScript during installation, establishing a concrete install-time attack surface. The downloaded installer itself is absent from the snapshot, so its behavior cannot be assessed here; the remote execution mechanism is directly visible in source.
Evidence
package.jsonscripts/postinstall.jsscripts/installer.js
Network endpoints1
premium.rxdb.info/scripts/installer.js
Decision evidence
public snapshotAI called this Malicious at 97.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json runs a postinstall downloader and then executes the downloaded installer.
- scripts/postinstall.js fetches installer code from premium.rxdb.info and writes it into the package directory for execution.
Evidence against
- The manifest identifies the package as RxDB Premium and links it to the RxDB project.
Behavioral surface
FilesystemNetwork
TrivialUrlStrings
NoLicense
Source & flagged code
4 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node ./scripts/postinstall.js && node ./scripts/installer.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg23"postinstall": "node ./scripts/postinstall.js && node ./scripts/installer.js"
},
"exports": {
".": {
"types": "./dist/types/index.d.ts",
"re
High
Suspicious Lifecycle Evidence
package.json runs a postinstall downloader and then executes the downloaded installer.
package.jsonView on unpkg · L23•scripts.postinstall = node ./scripts/postinstall.js && node ./scripts/installer.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgscripts/postinstall.jsView file
Findings
3 High2 Medium4 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighSuspicious Lifecycle Evidencescripts/postinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
LowScripts Present
LowFilesystem
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to rxdb-premium@17.6.0.
See all versions of rxdb-premium for other recorded verdicts.
- Avoid installing rxdb-premium@17.6.0. 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: .
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