CVE-2021-23421: Merge-Change Project Merge-Change

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set function.

Affected products

• Merge-Change Project Merge-Change: any version

Published 2021-08-11. Last modified 2026-06-17.