CVE-2026-47898

EUVD-2026-41517
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.83%
Affected Products (NVD)
VendorProductVersion
apachelucene.net
4.8.0:beta00005
apachelucene.net
4.8.0:beta00006
apachelucene.net
4.8.0:beta00007
apachelucene.net
4.8.0:beta00008
apachelucene.net
4.8.0:beta00009
apachelucene.net
4.8.0:beta00010
apachelucene.net
4.8.0:beta00011
apachelucene.net
4.8.0:beta00012
apachelucene.net
4.8.0:beta00013
apachelucene.net
4.8.0:beta00014
apachelucene.net
4.8.0:beta00015
apachelucene.net
4.8.0:beta00016
apachelucene.net
4.8.0:beta00017
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://lists.apache.org/thread/7yn9k6sbbsk18yco5y2hszpcf8dst489
http://www.openwall.com/lists/oss-security/2026/07/03/3