CVE-2020-9494: Apache Traffic Server

High severity, CVSS 7.5. EPSS: 3.6% chance of exploitation in the next 30 days.

Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can cause the server to allocate a large amount of memory and spin the thread.

Affected products

• Apache Traffic Server: from 6.0.0, up to and including 6.2.3; from 7.0.0, up to and including 7.1.10; from 8.0.0, up to and including 8.0.7
• Debian Debian Linux: version 10.0 only

Published 2020-06-24. Last modified 2026-06-17.