CVE-2020-8178: Jison Project Jison

Critical severity, CVSS 9.8. EPSS: 3.6% chance of exploitation in the next 30 days.

Insufficient input validation in npm package `jison` <= 0.4.18 may lead to OS command injection attacks.

Affected products

• Jison Project Jison: up to and including 0.4.18

Published 2020-07-15. Last modified 2026-06-17.