CVE-2026-47897 PUBLISHED

Apache Lucene.Net: Arbitrary file write from malicious server to Lucene.Net.Replicator client

Assigner: apache
Reserved: 20.05.2026 Published: 03.07.2026 Updated: 03.07.2026

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Lucene.Net (Lucene.Net.Replicator library).

This issue affects Apache Lucene.Net.Replicator: 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.

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/AU:Y/RE:L
CVSS Score: 8.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	Apache Software Foundation
Product	Apache Lucene.Net
Versions	Default: unaffected affected from 4.8.0-beta00005 to 4.8.0-beta00018 (excl.)

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE