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-2019-1010260 Vulnerability in maven package com.github.shyiko:ktlint
CVE-2022-24728 Vulnerability in maven package org.webjars.bowergithub.ckeditor:ckeditor4
CVE-2021-39154 Vulnerability in maven package com.thoughtworks.xstream:xstream
CVE-2023-0870 Vulnerability in maven package org.opennms:opennms-webapp
CVE-2018-3739 Vulnerability in maven package org.webjars.npm:https-proxy-agent