Vulnerability DatabaseCVE-2026-15803
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CVE-2026-15803
Published:August 12, 2026
Updated:September 01, 2026
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.
Affected Packages
https://github.com/eclipse-rdf4j/rdf4j.git (GITHUB):
Affected version(s) >=1.0M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-common-xml (JAVA):
Affected version(s) >=4.0.0-M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-rio-rdfxml (JAVA):
Affected version(s) >=1.0M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-rio-trix (JAVA):
Affected version(s) >=1.0M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-server-boot (JAVA):
Affected version(s) >=5.3.0-M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-queryresultio-sparqlxml (JAVA):
Affected version(s) >=1.0M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
org.eclipse.rdf4j:rdf4j-rio-api (JAVA):
Affected version(s) >=1.0M1 <5.3.2
Fix Suggestion:
Update to version 5.3.2
Related Resources (2)
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/175
https://rdf4j.org/release-notes/5.3.2/
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Control of Document Type Definition
CWE-827
Improper Restriction of XML External Entity Reference
CWE-611
EPSS
Base Score:
0.34