CVE-2021-27737: Apache Traffic Server

High severity, CVSS 7.5. EPSS: 3.7% chance of exploitation in the next 30 days.

Apache Traffic Server 9.0.0 is vulnerable to a remote DOS attack on the experimental Slicer plugin.

Affected products

• Apache Traffic Server: version 9.0.0 only

Published 2021-05-14. Last modified 2026-06-17.