OutOfMemory Exception by specifically crafted processing instruction in NekoHtml Parser
Date: 2022-04
Affected: maven/net.sourceforge.htmlunit:neko-htmlunit
Attack vector: dos
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2022-29546
CWE: CWE-400
CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

### Impact NekoHtml Parser suffers from a denial of service vulnerability on versions 2.60.0 and below. A specifically crafted input regarding the parsing of processing instructions leads to heap memory consumption. Please update to version 2.61.0. ### For more information If you have any questions or comments about this advisory: * Open an issue in [https://github.com/HtmlUnit/htmlunit-neko](https://github.com/HtmlUnit/htmlunit-neko) * Email us at [rbri at rbri.de]


Mitigations:

Architectural layers (MAESTRO):