CVE-2022-31813: Apache HTTP Server

Critical severity, CVSS 9.8. EPSS: 3.5% chance of exploitation in the next 30 days.

Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on the origin server/application.

Affected products

• Apache HTTP Server: before 2.4.54 (fixed in 2.4.54)
• Fedoraproject Fedora: version 35 only; version 36 only
• Netapp Clustered Data Ontap: affected versions not specified

Published 2022-06-09. Last modified 2026-06-17.