CVE-2026-47898 | BDVDB-2026-345478 Detail

ApacheApache Lucene.Net

Description#

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.

Impact#

Per CVSS v4.0: confidentiality impact low, integrity impact none, availability impact none. Attack vector: local.

Weaknesses#

CWE-611 Improper Restriction of XML External Entity Reference

References#

Exploit#

No public exploit known

History#

Version 12026-07-03Record published in the CVE List.
Version 22026-07-06Most recent update recorded in the CVE List.

Published

Published: 2026-07-03
Last modified: 2026-07-06

Vendor information

Vendor: Apache
Product: Apache Lucene.Net

All Apache vulnerabilities

Score

4.0 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

XML External Entity

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 4.8.0-beta00005 and < 4.8.0-beta00018
Fixed
4.8.0-beta00018

Scoring System

CVSS v4.0

4.0 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Attack Requirements	None
Privileges Required	High
User Interaction	None
Vulnerable System Confidentiality	Low
Vulnerable System Integrity	None
Vulnerable System Availability	None
Subsequent System Confidentiality	High
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).