GHSA-r2rv-8pp3-65xw

spmrc vulnerable to prototype pollution

Source: GitHub Advisory Database (reviewed) Low CVE-2025-57327

Packages

Ecosystem	Package	Affected	Fixed in
npm	spmrc	<= 1.2.0	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2025-57327 advisory
https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/spmrc%401.2.0/index.js web
https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57327 web
https://github.com/spmjs/spmrc package