CVE-2020-11724

Publication date 12 April 2020

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in OpenResty before 1.15.8.4. ngx_http_lua_subrequest.c allows HTTP request smuggling, as demonstrated by the ngx.location.capture API.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nginx	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Fixed 1.18.0-0ubuntu1.3
	19.10 eoan	Ignored end of life
	18.04 LTS bionic	Fixed 1.14.0-0ubuntu1.10
	16.04 LTS xenial	Fixed 1.10.3-0ubuntu0.16.04.5+esm4
	14.04 LTS trusty	Vulnerable

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Notes

mdeslaur

The lua module is included in the debian directory as it is not part of the upstream nginx release. It is included in the nginx-extras binary package in universe.

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N