CVE-2024-1899: Showdownjs Showdown

Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue in the anchors subparser of Showdownjs versions <= 2.1.0 could allow a remote attacker to cause denial of service conditions.

Affected products

• Showdownjs Showdown: up to and including 2.1.0

Published 2024-02-26. Last modified 2026-06-17.