Description
Certain Neko-related HTML parsers allow a denial of service via crafted Processing Instruction (PI) input that causes excessive heap memory consumption. In particular, this issue exists in HtmlUnit-Neko through 2.26, and is fixed in 2.27. This issue also exists in CyberNeko HTML through 1.9.22 (also affecting OWASP AntiSamy before 1.6.6), but 1.9.22 is the last version of CyberNeko HTML. NOTE: this may be related to CVE-2022-24839.
Remediation
References
https://github.com/nahsra/antisamy/releases/tag/v1.6.6
https://search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunit
https://sourceforge.net/projects/htmlunit/files/htmlunit/2.27/
Related Vulnerabilities
CVE-2020-14967 Vulnerability in maven package org.webjars.bower:jsrsasign
CVE-2018-17420 Vulnerability in maven package com.zrlog:zrlog
CVE-2016-3089 Vulnerability in maven package org.apache.openmeetings:openmeetings-web
CVE-2021-23673 Vulnerability in npm package pekeupload
CVE-2018-11762 Vulnerability in maven package org.apache.tika:tika-app