CVE-2021-23426: Proto Project Proto

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

This affects all versions of package Proto. It is possible to inject pollute the object property of an application using Proto by leveraging the merge function.

Affected products

Published 2021-09-01. Last modified 2026-06-17.