Description
In Eclipse RDF4J, several XML parser entry points do not fully restrict XML External Entity (XXE) processing when parsing untrusted XML-based RDF data or query results, permitting DOCTYPE declarations, external entity references, and external DTD loading. This is due to an incomplete fix for CVE-2018-1000644: the earlier fix did not cover all parser entry points. The issue is resolved in RDF4J 5.3.2, which rejects or disables DOCTYPE declarations, external entities, and external DTD loading by default.
Published: 2026-08-12
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 13 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
Title XML External Entity (XXE) Vulnerability in Eclipse RDF4J XML Parsing

Wed, 12 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Eclipse
Eclipse rdf4j
Vendors & Products Eclipse
Eclipse rdf4j

Wed, 12 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 16:00:00 +0000

Type Values Removed Values Added
Description In Eclipse RDF4J, several XML parser entry points do not fully restrict XML External Entity (XXE) processing when parsing untrusted XML-based RDF data or query results, permitting DOCTYPE declarations, external entity references, and external DTD loading. This is due to an incomplete fix for CVE-2018-1000644: the earlier fix did not cover all parser entry points. The issue is resolved in RDF4J 5.3.2, which rejects or disables DOCTYPE declarations, external entities, and external DTD loading by default.
Weaknesses CWE-611
CWE-827
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-08-13T15:22:54.290Z

Reserved: 2026-07-15T07:09:46.461Z

Link: CVE-2026-15803

cve-icon Vulnrichment

Updated: 2026-08-12T18:37:20.888Z

cve-icon NVD

Status : Received

Published: 2026-08-12T16:16:54.877

Modified: 2026-08-12T19:17:29.807

Link: CVE-2026-15803

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T23:45:03Z

Weaknesses
  • CWE-611

    Improper Restriction of XML External Entity Reference

  • CWE-827

    Improper Control of Document Type Definition