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-2018-15494 Vulnerability in npm package dojox
CVE-2020-9498 Vulnerability in maven package org.apache.guacamole:guacamole
CVE-2019-15607 Vulnerability in npm package node-red
CVE-2021-4264 Vulnerability in maven package org.webjars.npm:dustjs-linkedin
CVE-2023-47326 Vulnerability in maven package org.silverpeas.core:silverpeas-core