CVE-2021-40894: Underscore-99xp Project Underscore-99xp

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in underscore-99xp v1.7.2 when the deepValueSearch function is called.

Affected products

• Underscore-99xp Project Underscore-99xp: version 1.7.2 only

Published 2022-06-24. Last modified 2026-06-17.