CVE-2023-30421: Mjson Project Mjson

Low severity, CVSS 2.9. EPSS: 0.2% chance of exploitation in the next 30 days.

mystrtod in mjson 1.2.7 requires more than a billion iterations during processing of certain digit strings such as 8891110122900e913013935755114.

Affected products

• Mjson Project Mjson: version 1.2.7 only

Published 2025-04-19. Last modified 2026-06-17.