CVE-2018-1000644

Severity: critical (CVSS 10.0 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-08-20 · updated 2026-06-17
Weakness: CWE-611

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.

Affected products

eclipse Rdf4J: before 2.4.0; 2.4.0, 2.4.0-m1, 2.4.0-m2 — fixed in 2.4.0

How to fix

Upgrade to a fixed version: eclipse Rdf4J 2.4.0. Check the vendor advisory for mitigations.

References

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

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