Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-47898

Severity CVSS v4.0:
MEDIUM
Type:
CWE-611 Improper Restriction of XML External Entity Reference ('XXE')
Publication date:
03/07/2026
Last modified:
08/07/2026

Description

Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).<br /> <br /> This issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.<br /> <br /> Users are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.

Impact

Vector 4.0
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 4.00 MEDIUM
Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): High
User Interaction (UI): None
Confidentiality (VC): Low
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): High
Integrity (SI): None
Availability (SA): None

Base Score 4.0
4.00
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:lucene.net:4.8.0:beta00005:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00006:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00007:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00008:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00009:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00010:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00011:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00012:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00013:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00014:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00015:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00016:*:*:*:*:*:*
cpe:2.3:a:apache:lucene.net:4.8.0:beta00017:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools