Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser
Summary
| CVE | CVE-2026-47898 |
|---|---|
| State | PUBLISHED |
| Assigner | apache |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-03 08:16:24 UTC |
| Updated | 2026-07-08 18:25:07 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 4 MEDIUM from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.003280000 probability, percentile 0.247940000 (date 2026-07-10)
Problem Types: CWE-611 | CWE-611 CWE-611 Improper Restriction of XML External Entity Reference
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 4 | 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/E:X/C... |
| 4.0 | CNA | CVSS | 4 | 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 |
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
HighAttack Requirements
NonePrivileges Required
HighUser Interaction
NoneConfidentiality
LowIntegrity
NoneAvailability
NoneSub Conf.
HighSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Apache | Lucene.net | 4.8.0 | beta00005 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00006 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00007 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00008 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00009 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00010 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00011 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00012 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00013 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00014 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00015 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00016 | All | All |
| Application | Apache | Lucene.net | 4.8.0 | beta00017 | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Apache Software Foundation | Apache Lucene.Net | affected 4.8.0-beta00005 4.8.0-beta00018 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| lists.apache.org/thread/7yn9k6sbbsk18yco5y2hszpcf8dst489 | [email protected] | lists.apache.org | Mailing List, Vendor Advisory |
| www.openwall.com/lists/oss-security/2026/07/03/3 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | Mailing List, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Daniel Cervera (en)
CNA: Paul Irwin (en)
CNA: Shad Storhaug (en)
There are currently no legacy QID mappings associated with this CVE.