Code injection in net.sourceforge.htmlunit:htmlunit
Priority MEDIUM 54CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02513 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed net.sourceforge.htmlunit:htmlunit: 3.0.0net.sourceforge.htmlunit:htmlunit (Maven): 3.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | net.sourceforge.htmlunit:htmlunit | before 3.0.0 | 3.0.0 | Patch available | CNA |
| — | net.sourceforge.htmlunit:htmlunit (Maven) | before 3.0.0 | 3.0.0 | Patch available | GHSA-3xrr-7m6p-p7xh |
- net.sourceforge.htmlunit:htmlunit Vendor— Affected before 3.0.0 Fixed in 3.0.0 Patch available CNA
- net.sourceforge.htmlunit:htmlunit (Maven) Vendor— Affected before 3.0.0 Fixed in 3.0.0 Patch available GHSA-3xrr-7m6p-p7xh
Remediation
- Fix · CNA net.sourceforge.htmlunit:htmlunit Fixed in 3.0.0
- Fix · GHSA-3xrr-7m6p-p7xh net.sourceforge.htmlunit:htmlunit (Maven) Fixed in 3.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26119
- 2026-10-03 Alias added: GHSA-3xrr-7m6p-p7xh
- 2026-10-08 CISA SSVC decision points changed
References
More Htmlunit vulnerabilities
- TI-2023-26758 HtmlUnit vulnerable to Remote Code Execution (RCE) via XSTL CVSS 3.1CRITICAL 9.8
- TI-2020-04499 Code injection in HtmlUnit CVSS 3.1HIGH 8.1
- TI-2022-11120 Certain Neko-related HTML parsers allow a denial of service via crafted Processing… CVSS 3.1HIGH 7.5
- TI-2023-02621 Denial of service in HtmlUnit CVSS 3.1HIGH 7.5
- TI-2022-12000 HtmlUnit NekoHtml Parser before 2.61.0 suffers from a denial of service vulnerability. CVSS 3.1HIGH 7.5
Sources
- CVE-2023-26119 · CVE Program
- CVE-2023-26119 · NVD
- FIRST EPSS
- GHSA-3xrr-7m6p-p7xh · GitHub Advisory Database · CC BY 4.0
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