HtmlUnit Code Injection vulnerability

CRITICAL 9.8CVE-2023-26119 · GHSA-3xrr-7m6p-p7xh · Published 03/04/2023 · updated 08/10/2026

In short

CVE-2023-26119 is a CRITICAL (CVSS 9.8) vulnerability affecting net.sourceforge.htmlunit:htmlunit, htmlunit (htmlunit).
Chance of exploitation in the next 30 days (EPSS): 2.5%, higher than 84.8% of all vulnerabilities.
Fix: update to 3.0.0 or later.

Package	Affected versions	Patched versions
net.sourceforge.htmlunit:htmlunit Maven	`< 3.0.0`	`3.0.0`
htmlunit htmlunit	`< 3.0.0`	`3.0.0`

Description

Versions of the package net.sourceforge.htmlunit:htmlunit from 0 and before 3.0.0 are vulnerable to Remote Code Execution (RCE) via XSTL, when browsing the attacker’s webpage.

NVD description

Versions of the package net.sourceforge.htmlunit:htmlunit from 0 and before 3.0.0 are vulnerable to Remote Code Execution (RCE) via XSTL, when browsing the attacker’s webpage.

References

nvd.nist.gov/vuln/detail/CVE-2023-26119 · ADVISORY
HtmlUnit/htmlunit commit 641325b · WEB
HtmlUnit/htmlunit · PACKAGE
security.snyk.io/vuln/SNYK-JAVA-NETSOURCEFORGEHTMLUNIT-3252500 · WEB
siebene.github.io/2022/12/30/HtmlUnit-RCE · WEB
siebene.github.io/2022/12/30/HtmlUnit-RCE · Exploit

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