CVE-2019-10750: Deeply Project Deeply

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

deeply is vulnerable to Prototype Pollution in versions before 3.1.0. The function assign-deep could be tricked into adding or modifying properties of Object.prototype using using a _proto_ payload.

Affected products

• Deeply Project Deeply: before 3.1.0 (fixed in 3.1.0)

Published 2019-08-23. Last modified 2026-06-17.