CVE-2022-28366: Uncontrolled Resource Consumption

April 21, 2022 (updated October 28, 2022)

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-2022-24939.

References

github.com/nahsra/antisamy/releases/tag/v1.6.6
nvd.nist.gov/vuln/detail/CVE-2022-28366
search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunit
sourceforge.net/projects/htmlunit/files/htmlunit/2.27/

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