rivemcp@1.14.2
Polymation — the multi-format AI animation MCP. Author Rive (.riv/.rev) and Spline (.splinecode/.spline) scenes from scratch and convert Rive↔Spline, validated on the real runtime. The most complete Rive MCP, now multi-format.
AI Security Review
scanned 26d ago · by lpm-firewall-aiThe source confirms an install-time opaque executable download and later execution, which warrants a warning as a staged payload carrier. The inspected JavaScript does not establish malicious behavior by the payload, so a block is not supported.
Decision evidence
public snapshot- The package runs a postinstall script during installation.
- That script downloads a platform-specific executable from a GitHub release and writes it into the package's bin directory without checking a checksum or signature.
- The launcher executes the downloaded binary when invoked, so the executable is opaque in the inspected JavaScript source.
- The download URL uses this package's version and a release host consistent with its launcher.
- The executable runs only when the user invokes the package launcher; the inspected source shows no separate credential collection or unrelated file mutation.
Source & flagged code
5 flaggedPackage defines install-time lifecycle scripts.
package.jsonView on unpkgInstall-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgThe package runs a postinstall script during installation.
package.jsonView on unpkg · L53Findings
Affected versions and remediation
This report applies to rivemcp@1.14.2.
See all versions of rivemcp for other recorded verdicts.
- Review the evidence and your use of rivemcp@1.14.2 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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