CVE-2020-8268: JSON8-Merge-Patch Project JSON8-Merge-Patch

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Prototype pollution vulnerability in json8-merge-patch npm package < 1.0.3 may allow attackers to inject or modify methods and properties of the global object constructor.

Affected products

• JSON8-Merge-Patch Project JSON8-Merge-Patch: before 1.0.3 (fixed in 1.0.3)

Published 2020-11-09. Last modified 2026-06-17.