CVE-2025-57327: Spmjs Spmrc

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

spmrc is a package that provides the rc manager for spm. A Prototype Pollution vulnerability in the set and config function of spmrc version 1.2.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

Affected products

• Spmjs Spmrc: up to and including 1.2.0

Published 2025-09-24. Last modified 2026-06-17.