CVE-2022-31813

Publication date 9 June 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	22.10 kinetic	Fixed 2.4.54-2ubuntu1
	22.04 LTS jammy	Fixed 2.4.52-1ubuntu4.1
	21.10 impish	Fixed 2.4.48-3.1ubuntu3.5
	20.04 LTS focal	Fixed 2.4.41-4ubuntu3.12
	18.04 LTS bionic	Fixed 2.4.29-1ubuntu4.24
	16.04 LTS xenial	Fixed 2.4.18-2ubuntu3.17+esm6
	14.04 LTS trusty	Fixed 2.4.7-1ubuntu4.22+esm8

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
apache2	Upstream: 956f708

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H