CVE-2020-15899: Grin

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Grin 3.0.0 before 4.0.0 has insufficient validation of data related to Mimblewimble.

Affected products

• Grin Grin: from 3.0.0, before 4.0.0 (fixed in 4.0.0)

Published 2020-07-28. Last modified 2026-06-17.