CVE-2022-31813

CRITICAL9.8EPSS 0.05%

mod_proxy X-Forwarded-For dropped by hop-by-hop mechanism

Published: 6/9/2022Modified: 4/28/2026

Description

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 packages (3)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1CRITICAL9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (9)