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://sourceforge.net/projects/htmlunit/files/htmlunit/2.27/
https://search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunit
Related Vulnerabilities
CVE-2021-32661 Vulnerability in npm package plugin-techdocs
CVE-2021-23369 Vulnerability in npm package handlebars
CVE-2019-9843 Vulnerability in maven package com.diffplug.spotless:spotless-plugin-gradle
CVE-2018-11778 Vulnerability in maven package org.apache.ranger:ranger
CVE-2018-16153 Vulnerability in maven package org.opencastproject:opencast-common