CVE-2021-3801: Prismjs Prism

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

prism is vulnerable to Inefficient Regular Expression Complexity

Affected products

• Prismjs Prism: before 1.25.0 (fixed in 1.25.0)

Published 2021-09-15. Last modified 2026-06-17.