CVE-2022-25907: TypeScript Deep Merge Project TypeScript Deep Merge

Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The package ts-deepmerge before 2.0.2 are vulnerable to Prototype Pollution due to missing sanitization of the merge function.

Affected products

• TypeScript Deep Merge Project TypeScript Deep Merge: before 2.0.2 (fixed in 2.0.2)

Published 2022-08-09. Last modified 2026-06-17.