CVE-2026-47898NVD

Vulnerability Summary

Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).

This issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.

Users are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.

Severity Level

UNKNOWN

Published Date

Jul 3, 2026

Last Modified

Jul 6, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.35%Probability

Root Weakness (CWE)

CWE-611: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 4.0 (MEDIUM)

Attack VectorLocal

Attack ComplexityHigh

Attack RequirementsNone

Privileges RequiredHigh

User InteractionNone

Confidentiality (Vulnerable System)Low

Integrity (Vulnerable System)None

Availability (Vulnerable System)None

Confidentiality (Subsequent System)High

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

Apache Software Foundation Apache Lucene.Net >= 4.8.0-beta00005 and < 4.8.0-beta00018

Patched Versions

Apache Software Foundation Apache Lucene.Net 4.8.0-beta00018

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