rivemcp@1.13.6
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 2mo ago · by lpm-firewall-aiThis is an automatic opaque payload-delivery chain with no integrity verification, so it cannot be treated as clean. The readable code does not prove a concrete malicious action beyond staging and execution of the uninspectable binary.
Decision evidence
public snapshot- The package runs a postinstall script automatically.
- Postinstall downloads a platform-specific obfuscated binary from GitHub without integrity verification.
- The command shim executes that downloaded binary with the user's arguments.
- The installer follows arbitrary HTTP redirects before writing the response as an executable.
- The installer writes only within its own bin directory.
- No credential harvesting, project-wide mutation, or exfiltration is visible in the readable JavaScript.
Source & flagged code
7 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 automatically.
package.jsonView on unpkg · L44Findings
Affected versions and remediation
This report applies to rivemcp@1.13.6.
See all versions of rivemcp for other recorded verdicts.
- Review the evidence and your use of rivemcp@1.13.6 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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