CVE-2026-47897: Apache Lucene.net

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Lucene.net: version 4.8.0 only

Published 2026-07-03. Last modified 2026-07-08.