CVE-2019-0196: Apache HTTP Server

Medium severity, CVSS 5.3. EPSS: 20% chance of exploitation in the next 30 days.

A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparison when determining the method of a request and thus process the request incorrectly.

Affected products

• Apache HTTP Server: from 2.4.17, up to and including 2.4.38
• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 9.0 only

Published 2019-06-11. Last modified 2026-06-17.