CVE-2021-3645: Merge Project Merge

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Affected products

• Merge Project Merge: before 1.0.2 (fixed in 1.0.2)

Published 2021-09-10. Last modified 2026-06-17.