CVE-2021-42836: Gjson Project Gjson

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.

Affected products

• Gjson Project Gjson: before 1.9.3 (fixed in 1.9.3)

Published 2021-10-22. Last modified 2026-06-17.